Quick answer: A patient assessment is the structured way a clinician gathers information about a patient’s health, makes sense of it and decides what care comes next. It combines what the patient reports (subjective data) with what the clinician measures and observes (objective data): the health history, vital signs, a physical exam and validated screening tools.
It isn’t a one-time event. A good assessment is repeated, so the care team can see whether the patient is getting better or worse.
Every care decision starts with an assessment. A nurse checking a new admission, a paramedic at a car crash and a care manager calling a heart failure patient at home are all assessing a patient, just at different depths and for different reasons.
This guide explains what a patient assessment is, the main types, how to assess a patient step by step, and the validated tools clinicians use, with a filled-in sample. It also covers the part most guides skip: the assessments Medicare requires before a practice can run care management programs like CCM and the Annual Wellness Visit.
A patient assessment is the first step of the nursing process, often taught as ADPIE: assessment, diagnosis, planning, implementation and evaluation. Physicians, nurse practitioners, physician assistants, nurses, pharmacists and care managers all do some version of it.
Every assessment collects two kinds of information.
| Subjective data | Objective data | |
|---|---|---|
| What it is | What the patient (or a caregiver) tells you | What you can measure, see, hear or test |
| Examples | “I get short of breath climbing stairs.” Pain rated 6 out of 10. Feeling down most days. | Blood pressure 152/94. Weight up 2.3 kg in a week. Ankle swelling. A PHQ-9 score of 12. |
| How you get it | Interview, questionnaires, patient-reported outcomes | Vital signs, physical exam, labs, device readings |
Neither one is enough alone. A patient can feel fine with a dangerously high blood pressure, and a normal set of vitals can hide a patient who has quietly stopped taking their medication.
| Type | When it’s done | What it covers |
|---|---|---|
| Comprehensive (initial) | A new patient, a hospital admission, or the start of a care management program | Full health history, review of systems, head-to-toe exam, function, psychosocial needs |
| Focused | A specific problem or complaint | One body system or concern, such as chest pain or a wound |
| Ongoing (reassessment) | At set intervals, or after any change or treatment | Whether the patient is improving, stable or getting worse |
| Emergency (primary survey) | An unstable or critically ill patient | Immediate threats to life, using the ABCDE approach |
| Functional and geriatric | Older adults, before discharge, or when independence is in question | Daily activities, mobility, fall risk, cognition |
| Psychosocial and behavioral | Routine screening, or when mood or substance use is a concern | Depression, anxiety, alcohol use, social needs |
| Risk assessment | On admission and regularly afterward | Risk of falls, pressure injuries, readmission or malnutrition |
The order changes with the setting, but a thorough assessment usually follows these steps.
If the patient looks unwell, start with a primary survey before anything else. The ABCDE approach, taught by bodies such as the Resuscitation Council UK, checks Airway, Breathing, Circulation, Disability (level of consciousness) and Exposure, fixing each problem before moving on. A stable patient can skip straight to the history.
Read the chart, recent results, the medication list and notes from other clinicians. It saves the patient from repeating their story and shows you what changed since the last contact.
Start with the main concern in the patient’s own words. Then cover the history of the present illness, past medical and surgical history, medications and allergies, family history and social history (smoking, alcohol, living situation, support at home). For a symptom, the OLDCARTS prompt keeps you thorough: onset, location, duration, character, aggravating factors, relieving factors, timing and severity.
Temperature, pulse, respiratory rate, blood pressure and oxygen saturation, plus pain and weight where relevant. A single reading tells you less than a trend, which is why repeated measurements matter so much in chronic disease.
Use the four classic techniques: inspection, palpation, percussion and auscultation. A head-to-toe exam suits a comprehensive assessment. A focused exam suits a single complaint.
Standard tools turn a vague impression (“she seems a bit down”) into a number you can track and compare. The examples below are the ones most often used in primary care and care management.
Pull the findings together, decide what they mean, and write them up in a format others can follow. SOAP (subjective, objective, assessment, plan) is the most widely used. Then act on it, and set a time to reassess.
| Tool | What it assesses | How it’s scored |
|---|---|---|
| PHQ-9 | Depression | 0–27. Scores of 5, 10, 15 and 20 mark mild, moderate, moderately severe and severe depression. |
| GAD-7 | Anxiety | 0–21. Scores of 5, 10 and 15 mark mild, moderate and severe anxiety. 10 or more usually prompts further evaluation. |
| Mini-Cog | Cognitive impairment | 0–5, from a three-word recall and a clock drawing. A score of 0–2 is a positive screen. |
| Timed Up and Go (TUG) | Fall risk and mobility | The patient stands up, walks 3 meters, turns, walks back and sits. CDC’s STEADI program treats 12 seconds or more as a sign of fall risk. |
| Katz ADL Index | Basic daily activities | Six items (bathing, dressing, toileting, transferring, continence, feeding), one point each. 6 means fully independent. |
| Lawton IADL Scale | Independent living skills | Eight items, including phone use, shopping, cooking, housekeeping, laundry, transport, medications and finances. |
| AUDIT-C | Alcohol use | Three questions, 0–12. A 2007 review recommended 4 or more for men and 3 or more for women as a positive screen. |
| Braden Scale | Pressure injury risk | 6–23, across six areas such as mobility, moisture and nutrition. Lower scores mean higher risk. |
| Numeric pain rating scale | Pain intensity | The patient rates pain from 0 (none) to 10 (worst imaginable). |
A screening tool flags a possible problem. It doesn’t diagnose one. A high PHQ-9 score, for example, calls for a clinical interview, not an automatic depression diagnosis.
Here’s what a monthly care management assessment can look like, written up in SOAP format. The patient is invented. The structure is the part to copy.
Patient: 74-year-old woman with heart failure and type 2 diabetes, enrolled in chronic care management. Monthly telephone assessment.
S (subjective): Reports more breathlessness on stairs this week and needs two pillows at night, up from one. Has missed her evening diuretic “a few times” because it keeps her up at night. Mood “okay”. Denies chest pain.
O (objective): Home monitoring readings: weight up 2.1 kg over 5 days, blood pressure 148/88, heart rate 92, SpO2 94%. Fasting glucose averaging 168 mg/dL. PHQ-9 today: 6.
A (assessment): Signs of fluid retention, likely linked to missed diuretic doses. Glucose above goal. Mild depressive symptoms, stable from last month.
P (plan): Same-day message to her cardiologist about the weight gain. Discussed taking the diuretic earlier in the day; pharmacist review of timing requested. Daily weights to continue, with a call back if weight rises another 1 kg. Repeat PHQ-9 next month. Reassess in 3 days.
Notice how the remote readings carry the objective section. With a remote patient monitoring program, a phone assessment gets real numbers instead of only the patient’s memory.
For practices, assessments aren’t only good care. Several Medicare services require them before you can bill.
The Annual Wellness Visit starts with a health risk assessment. According to CMS’s AWV page (updated April 9, 2026), it should collect at minimum:
The visit also checks for cognitive impairment, reviews depression risk and looks at functional ability and safety, including fall risk and hearing.
Before chronic care management can start, CMS requires an initiating visit (an E/M visit, AWV or IPPE) for new patients or anyone not seen in the past year. The care plan must then be built on what CMS’s MLN909188 booklet (June 2025) calls “a physical, mental, cognitive, psychosocial, functional, and environmental assessment and an inventory of resources and supports.”
That’s a comprehensive assessment in all but name, and it has to be revisited as the plan is monitored and revised. Principal care management works the same way for a single high-risk condition, with a disease-specific care plan. Our guide to what PCM means in medical terms covers the difference.
Behavioral health integration depends on repeated, validated measurement, which is why tools like the PHQ-9 and GAD-7 show up in almost every program. The score at enrollment and the score each month show whether treatment is working.
We see the same pattern in the practices we work with. The ones that run care management well don’t treat the assessment as paperwork. They use the same tools every month, so a change in score or weight stands out quickly.
A patient assessment is the structured process of collecting subjective information (what the patient reports) and objective information (vital signs, exam findings, test results and screening scores), interpreting it and using it to plan care. It’s the first step of the nursing process and is repeated over time.
The main types are comprehensive (initial), focused, ongoing (reassessment) and emergency assessments, along with specialized functional, psychosocial and risk assessments such as fall risk or depression screening.
Check for urgent problems first with the ABCDE approach, review the chart, take the health history, measure vital signs, do the physical exam, use validated screening tools, then analyze, document (often in SOAP format), act and reassess.
A common example is a PHQ-9 depression screen, a Timed Up and Go test for fall risk, or a monthly care management call where the clinician reviews symptoms, home blood pressure and weight readings, and medication adherence, then updates the care plan.
Subjective data is what the patient says, such as symptoms, pain level or how they feel. Objective data is what a clinician can measure or observe, such as blood pressure, weight, exam findings or a test score.
It’s the questionnaire that opens the Medicare Annual Wellness Visit. It collects demographic data, a self-assessment of health, psychosocial and behavioral risks, and the patient’s ability to manage daily activities, and it’s updated at each yearly visit.
It depends on the setting. Hospitals reassess every shift or after any change. In chronic care management, patients are typically reassessed monthly, with extra contact whenever symptoms, readings or medications change.
This article is general information for healthcare professionals and practice teams. It isn’t medical advice, and screening tools don’t replace clinical judgment. Confirm current Medicare requirements with CMS and your Medicare Administrative Contractor.
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