The Health History

The history is the single highest-yield diagnostic tool you own — a structured, repeatable interview that turns what the patient tells you into a written account a colleague could read cold and understand without ever having met them.

What you should be able to do: decide within the first minute whether an encounter calls for a comprehensive or a focused history; recite the components of the adult health history in order and state what belongs in each; elicit all seven attributes of a symptom, opening wide and narrowing down; separate subjective from objective data and symptoms from signs; place pertinent positives and negatives in the HPI rather than the review of systems; take a head-to-toe review of systems without letting it become a second HPI; and write an HPI in prose that stands alone.

Comprehensive versus focused assessment

Before the first question, answer a question for yourself: is this a comprehensive assessment or a focused one? The answer sets how deep you go in every section that follows, and it is decided by the relationship and the purpose of the visit, not by how sick the patient looks.

A comprehensive assessment is for a patient you have never met, and for any visit whose purpose is screening rather than problem-solving — new-patient intake, annual physical, sports or employment physical, preventive exam, hospital admission. It builds the baseline: every component, every organ system, the full social history. It is also the version you will be graded on performing.

A focused assessment is for an established patient returning for follow-up, or for a single circumscribed complaint. You still document all the components, but the HPI carries almost all the weight and everything else is abbreviated to what bears on the problem. A focused assessment is not a sloppy comprehensive one — it is a deliberate narrowing.

Element	Comprehensive	Focused
Typical setting	New patient, annual or sports physical, preventive visit, admission	Follow-up of a known problem, acute single complaint, urgent care
HPI	Full seven attributes for each active problem	Full seven attributes for the one problem, in more depth
Past medical and surgical history	Complete, lifelong, with dates	Only what bears on the complaint — an abdominal complaint pulls up prior abdominal surgery
Medications and allergies	Complete reconciliation, including over-the-counter and herbals	Always asked — this is never abbreviated to nothing
Family and social history	Two to three generations; full social history	Only the conditions, exposures and habits that change the differential
Review of systems	All systems, head to toe	The involved system plus the neighbors that share its differential

⭐ High yield — The cue that makes it comprehensive is first visit or screening visit. The cue that makes it focused is established patient or one specific concern. A patient you have seen for years who arrives with an entirely new problem still gets a focused history for it — you already have the baseline.

Pearl. Scope can change mid-interview. A focused ankle-sprain visit in which the patient mentions chest pressure on the stairs stops being focused. Widen without apology, and say so out loud: “Before we go back to the ankle, I want to ask more about that chest pressure.”

Subjective versus objective, symptom versus sign

Two pairs of words, one idea. Subjective data is what the patient tells you. Objective data is what you detect or measure. Everything from the chief complaint through the review of systems is subjective; everything from the general survey through the labs and imaging is objective. In a note that boundary is a hard line — it is the line between the S and the O.

A symptom is a subjective experience the patient reports and no one else can verify: nausea, dizziness, itching, fatigue, pain. A sign is an objective finding you elicit, observe or measure: jaundice, a murmur, a temperature of 101.4, rebound tenderness, a hemoglobin of 8.1.

Term	What it is	Where it is documented	Example
Symptom (subjective)	What the patient experiences and reports	HPI and ROS	“I’ve been short of breath walking to the mailbox.”
Sign (objective)	What you observe, elicit or measure	Physical exam, vitals, labs and imaging	Respiratory rate 26, crackles at both bases, saturation 91% on room air
Subjective data	Reported history, from any source	History sections only	Reported penicillin allergy; reported chills at home
Objective data	Measured or observed by a clinician	Exam and diagnostic sections only	Temperature 38.6 C; chest radiograph with a right lower lobe infiltrate

The same phenomenon can appear on both sides of the line, and this is where students get caught. A patient who says “I had a fever last night” is giving you a symptom — subjective, goes in the HPI. A thermometer reading of 38.6 in your exam room is a sign — objective, goes in the vitals. “My ankles have been swelling” is a symptom; the two-plus pitting edema you press into is a sign. Likewise, a lab result the patient reports is history; the result you obtain is data.

⭐ High yield — Signs never belong in the HPI. If you catch yourself writing “on exam the abdomen was tender” inside your HPI paragraph, you have crossed the line. The HPI is built entirely from what the patient told you.

A rehearsable order — the history from door to exam

Take it in the same order every time. The order is what keeps you from forgetting the allergy question at two in the morning, and it is what lets the patient follow where you are going. The quoted lines are the transitions — say something like them out loud, because a history that jumps from sputum color to alcohol use with no bridge feels like an interrogation.

Prepare and enter. Review whatever record exists, knock, enter, sit at the patient’s eye level. Greet by name, introduce yourself and identify yourself as a PA student, acknowledge anyone else in the room and their relationship to the patient.
“Good morning, Ms. Alvarez. I’m a PA student working with the clinic today. Is it all right if this gentleman stays while we talk?”
Set the agenda and get the chief complaint. One open-ended question, then stop talking. Let the patient run for a full minute before you interrupt, then check for anything else before diving in.
“What brings you in today?” … “Anything else going on we should cover while you’re here?”
Open the HPI wide. Invite the story chronologically, in the patient’s language, before you take control of the questioning.
“Tell me more about the cough — start from when you first noticed it.”
Narrow the HPI — the seven attributes. Fill in every attribute you did not get spontaneously, still avoiding leading questions.
“You mentioned it’s worse at night. Is there anything else that makes it worse, and anything that makes it better?”
Close the HPI — pertinent positives and negatives. Last come the yes/no questions drawn from the systems that share this differential. These answers stay in the HPI.
“Now some specific symptoms that go along with this. Any fever or chills? Coughing up blood? Swelling or pain in your calves?”
Past medical history. Signal the gear change — the patient does not know you are done with the cough.
“That’s helpful. I’d like to step back now and ask about your health in general. What conditions have you been diagnosed with?”
Past surgical history.
“Have you ever had any surgeries or procedures — anything where you were put to sleep, or anything done as an outpatient?”
Medications. Ask for the bottles or the list; do not accept “a little white pill.”
“What medicines are you taking right now? Include anything you buy without a prescription — vitamins, supplements, herbals, anything for sleep or pain.”
Allergies. Always ask the second half of the question.
“Are you allergic to any medicines? What happens when you take it?”
Immunizations and health maintenance.
“Are you up to date on your vaccines? When was your last tetanus shot? Your last colonoscopy or mammogram?”
Family history.
“Now some questions about your blood relatives. Are your parents living? What health problems do they have — or what did they die of, and at what age?”
Personal and social history. Begin with the neutral material — work, home, who is with you — and let the sensitive questions grow out of it.
“Tell me a little about you outside of your medical problems. Who’s at home with you? What do you do for work?”
The sensitive block. Normalize before you ask, and ask about behavior rather than identity.
“I ask everyone these next questions. Do you use tobacco or vape? How much alcohol in a typical week? Any other substances? And so I can take better care of you, I need to ask about your sexual health.”
Review of systems. Warn the patient it is a checklist, or they will read a suspicion into every question.
“Last part. I’m going to run quickly head to toe through a list of symptoms. Most won’t apply to you — just say no and we’ll keep moving.”
Summarize and hand off to the exam. Read the story back, invite correction, then signal the transition.
“Let me make sure I have this right — five days of cough, fever last night, soreness when you cough, and the inhaler isn’t helping like usual. Did I miss anything? Good — I’d like to examine you now.”

⭐ High yield — The questioning funnel runs open-ended → focused → yes/no, in that order. Opening with yes/no questions is the classic novice error: it buys a checklist of denials and no story. Leading questions are worse — “You haven’t had any blood in your stool, have you?” supplies the answer you want. Ask “Have you noticed any blood in your stool?”

Pearl. Sensitive topics go late for a reason. By the time you ask about drug use or sexual partners you have spent fifteen minutes earning the right to ask. Asking in the first two minutes usually buys a polite lie.

The components, what goes in each, and what gets left out

Every component appears in every comprehensive write-up, even when the entry is “none” or “non-contributory.” A blank section reads as a section you forgot to ask about.

Component	What goes in it	The omission that costs points
Identifying data and source	Name, age, sex, date of birth, record number, encounter date; who gave the history — patient, spouse, adult child, paramedic, transfer paperwork, prior records	Not naming the source when it is anyone other than the patient
Reliability	Your judgment of how much weight the history can bear, and why	Leaving it off, or writing “good” for a patient who could not tell you the year
Chief complaint	The reason for the visit, in the patient’s own words, in quotation marks, with a duration	Translating it into a diagnosis — “GERD” instead of “It burns in my chest after I eat”
History of present illness	Prose, chronological: the seven attributes, pertinent positives and negatives, relevant risk factors, treatments tried, relevant prior workup, and the patient’s own perspective	Bullet fragments instead of prose; missing attributes; no negatives
Past medical history	Adult illnesses with dates; childhood illnesses; psychiatric history; obstetric and gynecologic history; hospitalizations; history of resistant organisms such as MRSA	Listing only what came up in conversation; dropping psychiatric and OB history
Past surgical history	Every operation and procedure with the year, and the indication where it matters	No dates; forgetting outpatient procedures, cesarean sections and endoscopies
Medications	Name, dose, route and frequency for each — prescription, over-the-counter, vitamins, supplements, herbals, topicals, inhalers, eye drops, injectables	A drug name with no dose or frequency; missing over-the-counter and herbal products
Allergies	The agent and the reaction, for drugs, foods, latex and environmental triggers; “NKDA” if there are none	Recording the agent with no reaction; confusing an intolerance with an allergy
Immunizations and health maintenance	Vaccine status with dates; age-appropriate screening — colonoscopy, mammogram, Pap, bone density, lipids, HIV; advance directive and code status	Skipping it, or writing “up to date” with nothing behind it
Family history	Health or cause and age of death for parents, siblings, grandparents and children; heritable and familial conditions searched for deliberately	Mentioning only the sick relatives; not documenting healthy relatives as healthy
Personal and social history	Occupation and education; living situation; tobacco, alcohol and other substances quantified; sexual history; diet; exercise; safety; and the social determinants — housing, food, transportation, insurance, supports, stressors	“Smoker” or “social drinker” without quantifying; skipping diet, exercise and safety
Review of systems	Current symptoms only, system by system, head to toe; at least ten systems for a comprehensive history	Putting old diagnoses in it; repeating the HPI in it; leaving systems blank

Pearl. You will see the components counted as seven and as eight, depending on whether medications, allergies and health maintenance are folded into past history or split out. The content is identical either way, and the content is what is graded. Count them however your write-up template counts them, and never lose a heading in the regrouping.

Component by component, with a worked line

Identifying data and source. Who the patient is and who told you the story. The source matters because it changes how much weight the history carries: an account from the patient, from a spouse, from group-home staff and from a stack of transfer paperwork are four different kinds of evidence. Name the source whenever it is not the patient, and get consent before gathering history from someone else.

Example: Maria Alvarez, 47-year-old female. DOB 03/14/1979. MRN 884201. Encounter 09/11/2026. History obtained from the patient; walk-in clinic records reviewed.

Reliability. A one-line judgment placed with the identifying data. It is not an insult to the patient — it is a warning label for the next reader. Reliability drops with delirium, dementia, intoxication, severe pain, language barrier, and sometimes with motive.

Example (good): Reliability: good; alert, consistent chronology, brought her medication bottles.
Example (limited): Reliability: limited; disoriented to date and place, history supplemented by her daughter, who is present.

Chief complaint. The reason for the visit, in the patient’s words, in quotation marks, with a duration. Do not convert it into a diagnosis or into clinical shorthand — “My foot hurts,” not “foot pain” and not “plantar fasciitis.” If the patient has no complaint, record the purpose of the visit.

Example: CC: “I can’t stop coughing and I think I’m running a fever” × 5 days.
With no complaint: CC: “I’m just here for my yearly checkup.”

History of present illness. The narrative that makes the diagnosis: prose, chronological, containing the seven attributes, the pertinent positives and negatives, the risk factors that raise or lower the odds of the leading diagnoses, treatments already tried, relevant recent testing, and the patient’s own thoughts, fears and functional losses. It must stand alone — a colleague reading only your HPI should be able to name your top three diagnoses. Worked in full below.

Past medical history. Every diagnosis the patient carries, with the year and some marker of severity or control. Include childhood illnesses, psychiatric history, obstetric and gynecologic history, hospitalizations, and resistant organisms.

Example: Asthma, diagnosed age 12, well controlled, one course of oral steroids in 5 years; allergic rhinitis; migraine without aura; G2P2, LMP 08/28/2026; hospitalized for pneumonia 2014; no history of MRSA.

Past surgical history. Operations and procedures with years. Prior surgery explains adhesions, hardware, missing organs, altered anatomy and anesthesia risk, and it is the first thing you want when someone presents with abdominal pain.

Example: Laparoscopic cholecystectomy 2018; cesarean section 2009; tonsillectomy in childhood; screening colonoscopy 2024, one benign polyp removed.

Medications. Name, dose, route, frequency — all four, every time. Add over-the-counter products, vitamins, herbals, topicals, inhalers, eye drops and injectables, because that is where the interactions hide. Ask specifically about anything taken “only when I need it.”

Example: Fluticasone/salmeterol 250/50 mcg, one inhalation twice daily; albuterol HFA 90 mcg, two puffs inhaled every 4–6 hours as needed; lisinopril 10 mg by mouth daily; cetirizine 10 mg by mouth daily; ibuprofen 400 mg by mouth as needed for headache; fish oil 1000 mg by mouth daily.

Allergies. The agent and what it does. “Allergic to penicillin” is not usable information — a rash and anaphylaxis lead to completely different decisions, and nausea is an intolerance rather than an allergy at all. If the patient cannot remember, write that.

Example: Penicillin — diffuse hives and lip swelling, age 20. Sulfa — reaction unknown. Latex — contact dermatitis. No known food allergies.
When there are none: No known drug allergies (NKDA).

Immunizations and health maintenance. Vaccines with dates where you can get them, plus age- and sex-appropriate screening, advance directives and code status. This is the section where a screening visit earns its keep.

Example: Influenza 10/2025; Tdap 2019; COVID-19 primary series and 2024 booster; HPV series completed; last Pap 2024, normal; first screening mammogram not yet done; advance directive on file, full code.

Family history. Document at least parents, siblings and grandparents, with health status or cause and age of death, and state explicitly that healthy relatives are healthy — “Mother: living, 72, healthy, no known medical problems” is real data, not a blank. Search deliberately for what clusters in families: coronary disease and early cardiac death, hypertension, diabetes, stroke, cancer with site and age at diagnosis, asthma and atopy, thyroid and kidney disease, mental illness, substance use disorders, bleeding and clotting disorders, and any known genetic condition.

What to draw: a pedigree spanning three generations — the patient, the patient’s parents and siblings, and the grandparents, plus children where relevant. Squares are male and circles female; a horizontal line joins partners; a vertical line drops to offspring, drawn oldest to youngest left to right; shading marks an affected individual; a diagonal slash marks a deceased individual with age and cause written beneath; an arrow marks the patient you are examining. A pedigree shows pattern and age of onset at a glance in a way a list never does — which is exactly what tells you whether a cancer is familial or coincidental.

Example: Mother, 72, living — hypertension, hypothyroidism. Father, died 61 — myocardial infarction; had type 2 diabetes. Brother, 50 — hypertension. Sister, 44 — healthy. Maternal grandmother, died 88 — stroke. Paternal grandfather, died 59 — myocardial infarction. No family history of breast, ovarian or colon cancer.

Personal and social history. The section students rush and graders read closely, because it holds most of what actually determines the patient’s health. Cover, at minimum: occupation and education (current and past work, exposures — dust, solvents, noise, asbestos, animals); living situation (who is at home, housing stability, stairs, pets, caregiving duties); tobacco (type, amount, years, quantified in pack-years, quit date if former); alcohol (drinks per week, type, binge pattern, plus a screening instrument such as the four cut-down / annoyed / guilty / eye-opener questions, where two or more positives are a signal); other substances (what, route, how often, last use); sexual history (partners and their sex, number in a defined interval, protection, contraception, prior sexually transmitted infection — asked about behavior, not identity); diet (a typical day of eating, caffeine, restrictions); exercise (what, how often, how long); and safety (seat belts, helmets, firearms in the home and how stored, falls, and violence or fear at home). Add the social determinants: food, transportation, insurance, stressors, supports, barriers to care.

Example: Married, lives with husband and two children; works full time as a middle-school teacher; one flight of stairs at home; one cat. Tobacco: never. Alcohol: two to three glasses of wine weekly, no binge drinking, 0/4 on screening questions. Drugs: denies. Sexual history: one male partner, monogamous 15 years, no prior sexually transmitted infection, contraception by intrauterine device. Diet: eats out three to four times weekly, two cups of coffee daily. Exercise: walks 30 minutes three times weekly. Safety: wears seat belts, smoke detectors present, no firearms, feels safe at home. Reliable transportation and employer insurance; work stress her main stressor.

Quantifying tobacco: pack-years = packs per day × years smoked. One and a half packs per day for 20 years is 30 pack-years. “Smoker” is not an answer; 30 pack-years is.

⭐ High yield — Three recording rules get tested directly: the chief complaint is in quotation marks, in the patient’s words; a medication needs name, dose, route and frequency; an allergy needs the reaction, or the words “reaction unknown.”

Pearl. When a patient says a drug gives them nausea or diarrhea, that is an intolerance, not an allergy — but write down exactly what they told you rather than arguing taxonomy at the bedside. Labeling a whole antibiotic class off-limits on the strength of childhood stomach upset follows a patient for life.

The seven attributes of a symptom

This is the core skill of the interview and the most-tested item in this material. Every symptom the patient reports gets all seven, and a symptom described with all seven usually names its own differential. Take as many as you can from the open-ended story, then fill the gaps with focused questions.

Attribute	The question that elicits it	Example answer
1. Location	“Where exactly do you feel it? Point to it with one finger. Does it go anywhere else?”	“Right here under my right breast. When it’s bad it goes around to my back.”
2. Quality	“What does it feel like? Describe it in your own words.”	“Sharp and catching — like something sticks when I take a deep breath.”
3. Quantity or severity	“On a scale of zero to ten, how bad is it at its worst? At its best? What has it stopped you from doing?”	“Six out of ten when I cough, maybe a two sitting here. I’ve missed two shifts.”
4. Timing — onset, duration, frequency	“When did it start? How long does each episode last? How often does it come? Is it getting better, worse, or staying the same?”	“Five days ago. It comes in fits of ten or fifteen seconds, several times an hour, worse each night.”
5. Setting in which it occurs	“What were you doing when it started? Where were you? Has anything changed at home or work? Was anyone around you sick?”	“It started two days after my son came home from school with a fever.”
6. Remitting and exacerbating factors	“What makes it worse? What makes it better? Have you tried anything for it — did it help?”	“Coughing, cold air and lying flat make it worse. Sitting up and warm tea help for a few minutes. My inhaler isn’t doing much this time.”
7. Associated manifestations	“What else have you noticed along with it? Anything at all, even if it seems unrelated?”	“Fever last night, chills, I’m wiped out, and I get winded on the stairs now.”

Two further things belong in every HPI alongside the seven: the patient’s thoughts and feelings about what is happening and its effect on their life, and the risk factors that push a diagnosis up or down the list.

The mnemonics. Two are in common use, and they are the same seven attributes shuffled into a different order. Neither is a different body of content, and neither substitutes for knowing the seven by name.

Attribute	OLDCARTS	OPQRST
Location and radiation	L — Location	R — Region / Radiation
Quality	C — Character	Q — Quality
Quantity or severity	S — Severity	S — Severity
Timing — onset	O — Onset	O — Onset
Timing — duration and frequency	D — Duration; T — Timing	T — Timing
Setting	S — Setting (in some versions)	no dedicated letter
Remitting and exacerbating factors	A — Aggravating / Alleviating; T — Treatment tried	P — Provocation / Palliation
Associated manifestations	R — Related symptoms (in some versions only)	no dedicated letter

⭐ High yield — Learn the seven attributes by name, not the mnemonic. A question asking which attribute is missing from an HPI will word the answer as an attribute — “setting,” “associated manifestations” — not as a letter. The two attributes most often missing from a student HPI are setting and associated manifestations, which are exactly the two OPQRST has no letter for.

Pearl. The letters of OLDCARTS get expanded differently from one source to the next — T is sometimes timing and sometimes treatment tried, R is often radiation or relieving factors rather than related symptoms, and setting is sometimes tacked on the end and sometimes absent. Under the commoner readings of R, neither mnemonic has a letter for associated manifestations. That variability is precisely why the attributes, not the acronym, are the thing to memorize.

Pertinent positives and pertinent negatives

A pertinent positive is a symptom, habit, exposure or historical fact that is present and that supports or helps identify the condition you are considering. A pertinent negative is one that is absent and whose absence is itself informative — it argues against something on your differential, or excludes a dangerous alternative.

Both are defined relative to the differential diagnosis you are entertaining for this complaint. That is the whole idea: a fact is pertinent because of the question you are asking, not because of what the fact is. The same finding can be a pertinent positive in one patient, a pertinent negative in another, and in a third neither, belonging nowhere near the HPI.

Why they belong in the HPI and not the ROS. The review of systems is an undirected screen — a net thrown wide to catch symptoms nobody thought to ask about. The HPI is a directed argument for and against a differential. The moment a finding is relevant to the chief complaint it stops being screening data and becomes evidence, and evidence belongs in the paragraph making the case. Practically: your reader should be able to read the HPI alone and see what you were worried about and why. If the negative that excludes pulmonary embolism is buried three systems into an ROS checklist, the reasoning never reaches them. Anything discovered in the ROS, the family history, the medication list or the social history that bears on the chief complaint gets pulled up into the HPI. Duplication is fine — listing a pertinent finding in the HPI and again in its home section is expected. Leaving it out of the HPI is not.

Worked example — the same finding, both ways. Take one symptom, fever, and one habit, smoking, through three patients.

Case	Differential being weighed	Fever	Smoking history
22-year-old, 3 days of sore throat and painful swallowing	Streptococcal vs viral pharyngitis vs mononucleosis	Pertinent positive: “Reports fever to 101.5 at home with chills.” Fever with absent cough raises the odds of a bacterial cause.	Not pertinent — leave it in the social history
68-year-old, 2 weeks of worsening dyspnea and cough	Pneumonia vs heart failure exacerbation vs COPD exacerbation	Pertinent negative: “Denies fever, chills, and sputum production.” The absence argues against pneumonia and shifts weight toward a cardiac cause.	Pertinent positive: “50 pack-year history, still smoking.” A risk factor for both COPD and coronary disease — it belongs in the HPI, not only the social history.
30-year-old, pleuritic chest pain after a long flight	Pulmonary embolism vs musculoskeletal strain vs pneumonia	Pertinent negative: “Denies fever.” Argues away from infection.	Pertinent negative: “Never smoked; no estrogen-containing contraception; no personal or family history of clotting disorder.” Three absent risk factors that lower the pretest probability of embolism.

Notice the third row: a family history item and a medication item were both pulled up into the HPI, because both changed the probability of the diagnosis in question. That is the test of pertinence — would a reader’s estimate of the diagnosis change if this fact were removed?

⭐ High yield — A pertinent negative is a denial that carries information. “Denies hemoptysis” in a patient with a cough is a pertinent negative. “Denies hemoptysis” in a patient with an ankle sprain is noise. Pertinence is set by the differential, not by the symptom.

Pearl. Write pertinent negatives as denials in a run at the end of the HPI paragraph — “She denies hemoptysis, night sweats, weight loss, and calf pain or swelling.” Grouping them shows the reader, in one sentence, the entire list of diagnoses you considered and discarded.

How the HPI is actually written

The HPI is prose, not bullets, and it is chronological. It opens with a one-line identification and the relevant background, walks the illness forward in time, states what has been tried, gathers the associated symptoms, and closes with the pertinent negatives and the patient’s own perspective. Every attribute is embedded in a sentence; none is labeled.

CC: “I can’t stop coughing and I think I’m running a fever.”

HPI: Ms. Alvarez is a 47-year-old woman with a history of well-controlled asthma and allergic rhinitis who presents with five days of cough. The cough began two days after her 9-year-old son came home from school with a fever and sore throat. It started dry and tickling and by the third day became productive of thick yellow sputum. She describes it as a deep, rattling cough that comes in fits lasting ten to fifteen seconds, several times an hour, worst overnight and on waking, and worsening each day rather than improving. Since the second day she has had a sharp, catching pain under the right breast that does not radiate, which she rates 6/10 when she coughs and 2/10 at rest, and which is worse with a deep breath and with lying flat. Coughing and cold air aggravate it; sitting upright and warm liquids relieve it briefly. She has used her albuterol inhaler four times daily for three days with less relief than it usually gives her, and took acetaminophen last night for a temperature of 101.4 measured at home. She reports associated chills, marked fatigue, decreased appetite, and new shortness of breath climbing the single flight of stairs at home, which she managed without difficulty a week ago. She denies hemoptysis, wheezing, night sweats, unintentional weight loss, pressure-type or exertional chest discomfort, palpitations, leg swelling or calf pain, recent travel or immobilization, and any sick contact other than her son. She has never smoked and has had no pneumonia since 2014. She has missed two shifts at work and is frightened because her mother was hospitalized with pneumonia at about her age.

Where each attribute is hiding. Nothing above is labeled, which is the point — and every attribute is nevertheless present.

Attribute	The clause that carries it
Location	“a sharp, catching pain under the right breast that does not radiate”
Quality	“deep, rattling cough”; “sharp, catching”; “thick yellow sputum”
Quantity / severity	“6/10 when she coughs and 2/10 at rest”; “missed two shifts at work”
Timing	“five days” (onset), “fits lasting ten to fifteen seconds” (duration), “several times an hour, worst overnight” (frequency and pattern), “worsening each day” (course)
Setting	“began two days after her 9-year-old son came home from school with a fever”
Remitting / exacerbating	“worse with a deep breath and with lying flat”; “sitting upright and warm liquids relieve it”; the albuterol and acetaminophen trials
Associated manifestations	“chills, marked fatigue, decreased appetite, and new shortness of breath climbing the single flight of stairs”
Pertinent positives	Fever, purulent sputum, pleuritic pain, new exertional dyspnea, a clear sick contact, reduced response to her usual rescue inhaler
Pertinent negatives	No hemoptysis, night sweats or weight loss (against malignancy and tuberculosis); no calf pain, leg swelling, travel or immobilization (against pulmonary embolism); no wheezing (against a pure asthma exacerbation); never smoked
Patient’s perspective	“frightened because her mother was hospitalized with pneumonia at about her age”

The same patient, written badly: “Pt c/o cough x 5 days. Hx asthma. Using albuterol. Some chest pain. Febrile at home. Will obtain CXR.” — no chronology, no quality, no severity, no setting, no aggravating or relieving factors, no associated symptoms, and not one pertinent negative, so a reader cannot tell whether pulmonary embolism was ever considered. The chest pain has no location. It is written in fragments rather than prose. And it ends with a plan, which does not belong in a history section at all. The first version stands alone; this one requires the reader to come find you.

⭐ High yield — The standard your HPI is held to: a colleague who has never met the patient should be able to read the HPI alone and understand what is going on. If they would have to call you, it is not finished.

Pearl. Write the HPI in the third person with consistent tense, quote the patient directly when the phrasing itself is diagnostic (“like an elephant on my chest,” “the worst headache of my life”), and keep exam findings, test interpretations and your plan out of it.

The review of systems

Purpose. The ROS is a screening instrument. Its job is to catch symptoms the patient did not think to mention and you did not think to ask about — a second complaint hiding behind the first, an early sign of an unrelated disease, or a symptom that quietly changes the differential for the complaint at hand. It is asked last, after the story and the history are complete, and it is asked quickly.

It is not a second HPI. Every finding in the ROS is a yes or a no. If an answer is yes and it is pertinent to the chief complaint, do not develop it inside the ROS — pull it up into the HPI. If an answer is yes and it is a genuinely new problem, note it and decide whether it needs its own HPI today or a follow-up visit.

It is not the past medical history either. The ROS asks about current symptoms. A gallbladder removed in 2018 is past surgical history. Pneumonia three years ago is past medical history. Neither belongs in the ROS.

Order. Head to toe, system by system — never body part by body part. For a comprehensive history cover all the systems; the recognized documentation benchmark is a minimum of ten systems reviewed, and it comes from billing documentation guidelines rather than from clinical necessity. Any required count of findings within a system is a local write-up convention, not a general standard. Spend more time on the systems that could plausibly relate to the chief complaint and move briskly through the rest.

System	Screening questions
1. General / constitutional	Fever, chills, night sweats, unintentional weight change, fatigue, appetite change?
2. Skin, hair and nails	New rash, itching, new or changing moles, hair loss, nail changes?
3. HEENT	Headache, head injury; vision change, eye pain, double vision; hearing loss, ringing, ear pain or drainage; congestion, nosebleeds, sinus pressure; sore throat, hoarseness, dental problems, mouth sores?
4. Neck	Lumps, swollen glands, pain, stiffness, difficulty swallowing?
5. Breasts	Lumps, pain, skin changes, nipple discharge?
6. Respiratory	Cough, sputum, coughing blood, shortness of breath, wheezing, pain with breathing?
7. Cardiovascular	Chest pain or pressure, palpitations, shortness of breath lying flat, waking short of breath, leg swelling, fainting?
8. Gastrointestinal	Nausea, vomiting, heartburn, abdominal pain, diarrhea, constipation, change in stool color or caliber, blood in stool?
9. Genitourinary	Burning with urination, frequency, urgency, nighttime urination, blood in urine, incontinence, discharge, menstrual changes, sexual concerns?
10. Peripheral vascular	Leg cramps with walking that stop with rest, cold or color-changing hands and feet, varicose veins, calf pain or swelling?
11. Musculoskeletal	Joint pain, swelling or stiffness, morning stiffness and how long it lasts, muscle aches, back pain, limited motion?
12. Neurologic	Headache, dizziness, fainting, weakness, numbness or tingling, tremor, seizures, trouble with balance, speech or memory?
13. Psychiatric	Depressed mood, loss of interest, anxiety, sleep disturbance, thoughts of self-harm?
14. Hematologic / lymphatic	Easy bruising or bleeding, swollen glands, anemia, prior transfusion?
15. Endocrine	Heat or cold intolerance, excessive thirst or urination, excessive sweating, change in glove or shoe size?
16. Allergic / immunologic	Seasonal allergies, hives, frequent or unusual infections?

Example documentation, positive and negative in the same system:
RESPIRATORY: Reports productive cough and exertional dyspnea × 5 days. Denies hemoptysis and wheezing.
CARDIOVASCULAR: Denies pressure-type or exertional chest discomfort, palpitations, orthopnea, and lower extremity edema.

The two-way error. This is the mistake this material is built to test, and it runs in both directions.

Error	What it looks like	Why it is wrong	The fix
ROS material buried in the HPI	A knee-pain HPI that ends “…denies rash, constipation, ringing in the ears, and blurry vision”	None of those denials change the differential for knee pain — they are screening, not argument, and they dilute the paragraph	Move them to their systems in the ROS
HPI material buried in the ROS	A chest-pressure HPI that never mentions diaphoresis, with “GENERAL: reports sweating” in the ROS	The pertinent positive that most supports the dangerous diagnosis is hidden where no reader looks for reasoning	Pull it up into the HPI; it may remain in the ROS as well
Past history written into the ROS	“RESPIRATORY: pneumonia in 2014, appendectomy 2009”	The ROS records current symptoms, not old diagnoses or operations	Diagnoses to the PMH, operations to the PSH
Exam findings written into the ROS	“CARDIOVASCULAR: regular rate and rhythm, no murmur”	Those are signs — objective data. The ROS is subjective throughout	Move to the physical exam section
A yes developed inside the ROS	Three sentences on the timing and quality of a new headache under NEUROLOGIC	The ROS is yes/no screening; a symptom worth three sentences is worth its own HPI	Fold it into the existing HPI or open a second problem

⭐ High yield — Three sentences to keep straight: the HPI is the argument for and against the differential; the ROS is a head-to-toe screen for current symptoms; the PMH is the list of conditions the patient carries. Old diagnoses never go in the ROS, exam findings never go in either, and pertinent findings always get pulled up into the HPI.

Pearl. Tell the patient the ROS is a checklist before you start it. Without that warning, a patient who has been talking about a cough for ten minutes and is suddenly asked about mood, bleeding gums and leg cramps will assume you suspect something terrible — and will start volunteering symptoms to fit.

The focused questions and the red flags that change the plan

Some answers stop the routine history and reroute the encounter. Ask for them deliberately in any complaint that could carry them, and record them as pertinent positives or negatives in the HPI.

Complaint	Red-flag answer	Why it changes the plan
Chest pain	Pressure with exertion relieved by rest, radiation to the jaw or left arm, diaphoresis, nausea, dyspnea	Acute coronary syndrome — the encounter becomes an emergency evaluation, not an office visit
Headache	Sudden and maximal at onset, “worst of my life”; fever with neck stiffness; new headache after age 50; wakes the patient from sleep; focal deficit	Subarachnoid hemorrhage, meningitis, mass — urgent imaging or workup
Back pain	Bowel or bladder incontinence, urinary retention, saddle numbness, progressive leg weakness, fever, weight loss, history of cancer, intravenous drug use	Cauda equina, epidural abscess, metastatic disease — emergent imaging
Abdominal pain	Prior abdominal surgery with obstipation and vomiting; rigidity; pain out of proportion to exam; gastrointestinal bleeding; possible pregnancy	Obstruction, perforation, ischemia, ectopic pregnancy
Cough or dyspnea	Hemoptysis, unilateral calf pain or swelling, recent immobilization or long travel, night sweats with weight loss	Pulmonary embolism, malignancy, tuberculosis
Any complaint	Unintentional weight loss, drenching night sweats, persistent fever, fear of a person at home	Malignancy, chronic infection, or an unsafe living situation — each has its own pathway

⭐ High yield — Red flags are asked about and documented in the HPI, positive or negative. “Denies saddle anesthesia, bowel or bladder incontinence, fever, and unintentional weight loss” in a back-pain HPI is not filler — it is the sentence showing you considered cauda equina and found it unlikely.

Pearl. The last question of every history should be the one that costs nothing and occasionally saves the visit: “Is there anything else you were hoping we’d talk about today?” The real reason for the visit surfaces at the door more often than anyone would like.