Clinical meaning
The comprehensive history and physical examination (H&P) is the foundational clinical skill for nurse practitioner practice, integrating systematic data collection with advanced clinical reasoning to generate differential diagnoses and evidence-based management plans. The NP approach to H&P differs from task-oriented assessment by incorporating autonomous diagnostic reasoning, prescriptive authority considerations, and independent clinical decision-making. The history component follows a structured framework: chief complaint (CC), history of present illness (HPI) using OLDCARTS or OPQRST mnemonics with attention to pertinent positives and negatives, past medical history (PMH), past surgical history (PSH), family history (FH) with three-generation genogram for hereditary conditions, social history (SH) including HEADSS assessment for adolescents and substance use screening with validated tools (AUDIT-C, CAGE, PHQ-9), current medications with OTC and supplements, allergies with reaction type (true allergy vs. intolerance vs. adverse effect), and review of systems (ROS) — a 14-system screening tool that identifies symptoms the patient may not have spontaneously reported. The physical examination proceeds through inspection, palpation, percussion, and auscultation across all body systems, with the NP performing focused maneuvers based on clinical hypotheses generated during the history. Clinical reasoning employs both System 1 (pattern recognition/intuition for experienced clinicians) and System 2 (analytical/hypothetico-deductive reasoning) processing. The NP synthesizes history and physical findings to create a problem list, prioritized differential diagnoses using Bayesian reasoning (pre-test probability modified by clinical findings), and an assessment and plan (A&P) addressing each problem with diagnostic workup, therapeutic interventions, patient education, and follow-up.