# A 60-year-old male patient presents to the emergency department with complaints of chest pain that began 2 hours ago. The patient appears anxious and is diaphoretic. Which assessment technique should the nurse prioritize to gather the most critical initial information?

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## 문제

A 60-year-old male patient presents to the emergency department with complaints of chest pain that began 2 hours ago. The patient appears anxious and is diaphoretic. Which assessment technique should the nurse prioritize to gather the most critical initial information?

## 보기

1. Obtain a detailed health history including onset, location, quality, and associated symptoms of the chest pain **✔ 정답**
2. Perform a complete physical examination starting with head-to-toe assessment
3. Review all available laboratory results and diagnostic imaging studies
4. Assess the patient's psychosocial status and coping mechanisms

**정답: 1**

## 해설

A detailed health history is prioritized for chest pain to identify life-threatening conditions and guide immediate care. Other options are important but secondary to initial history-taking.

## 심화 해설

Clinical Reasoning & Priority Setting

For a patient presenting with acute chest pain, the nurse must rapidly differentiate between life-threatening conditions such as acute coronary syndrome (ACS) and less urgent etiologies. While a complete physical examination and review of diagnostic studies are essential components of care, they are time-consuming and should not delay the gathering of focused, symptom-specific data. The initial priority is to obtain a targeted health history that characterizes the pain and associated symptoms, which directly informs the likelihood of cardiac ischemia and guides immediate interventions.

Pathophysiology & Clinical Correlation

Chest pain in the context of coronary artery disease (CAD) arises from an imbalance between myocardial oxygen supply and demand. The patient's presentation—diaphoresis and anxiety—indicates activation of the sympathetic nervous system, a common compensatory response to reduced cardiac output and pain. A detailed history focusing on the PQRST mnemonic (Provocation/Palliation, Quality, Region/Radiation, Severity, Timing) is critical. For instance, substernal pressure radiating to the left arm that began at rest and has lasted for 2 hours strongly suggests an acute myocardial infarction (MI). This information is more immediately actionable than a general physical exam, which may reveal non-specific findings such as an S3 gallop or crackles only after significant ventricular dysfunction has occurred. A systematic review highlights that unrecognized or poorly characterized symptoms in coronary heart disease (CHD) patients can lead to delayed diagnosis and treatment, underscoring the critical nature of this initial assessment .

Clinical Application & Safety

Prioritizing a focused pain assessment aligns with the nursing process and emergency care standards. The nurse must rule out the worst-case scenario first. A detailed health history can quickly identify high-risk features (e.g., crushing pain, nausea, dyspnea) that necessitate an immediate 12-lead ECG and notification of the rapid response team. Delaying this to perform a head-to-toe assessment or to review laboratory results that may not yet be available (such as troponin levels) constitutes a failure in clinical prioritization. Furthermore, while psychosocial assessment is important for long-term management, particularly given the high prevalence of post-ACS depression and cognitive impairment noted in recent studies, it is not the immediate priority during the acute pain episode [2, 3]. The structured management of a patient’s care pathway, including the transition from the acute episode, begins with this precise initial data collection, which is foundational to all subsequent decisions .

## 임상 시나리오

**Clinical Scenario:** A 60-year-old male presents to the emergency department with acute-onset chest pain, anxiety, and diaphoresis. The immediate priority is to differentiate life-threatening acute coronary syndrome (ACS) from less critical etiologies.

Rapid Triage and Initial Assessment for Suspected ACS

- **Immediate Action (First 10 Minutes):** Obtain a focused history using the PQRST mnemonic while simultaneously initiating a 12-lead ECG. Do not delay the history for a full physical exam. Ask about onset (sudden vs. gradual), quality (pressure, tightness, burning), location/radiation (substernal, left arm, jaw), severity (1-10 scale), and timing (duration, changes over time).

- **Key Clinical Cues:** Diaphoresis and anxiety are high-risk features indicating sympathetic activation and potential cardiogenic shock. Substernal pressure lasting over 20 minutes and unrelieved by rest strongly suggests ST-elevation myocardial infarction (STEMI) or non-STEMI.

- **Focused Physical Exam:** After the targeted history and ECG, perform a cardiovascular-focused assessment: auscultate heart sounds (new S3 or S4 gallop, murmurs), check for jugular venous distention, and auscultate lung bases for crackles (indicating left ventricular failure). A complete head-to-toe exam is deferred.

- **Diagnostic Integration:** Use the history to guide interpretation of the ECG and initial high-sensitivity troponin. For example, a description of "tearing pain radiating to the back" would shift the priority toward ruling out aortic dissection, not ACS.

- **Nursing Priority Rationale:** A detailed symptom history is the most critical initial data point because it directly informs the pre-test probability of ACS and determines the speed of reperfusion therapy (e.g., cath lab activation for STEMI).

Clinical Pearls

- In elderly, female, or diabetic patients, ACS may present without classic chest pressure; symptoms like dyspnea, nausea, or fatigue may be the only clues, making a thorough history even more vital.

- Document the exact time of symptom onset; this is a critical factor in determining eligibility for thrombolytic therapy or primary PCI.

- While obtaining the history, place the patient on a cardiac monitor, establish IV access, and administer oxygen only if saturation is below 90% (to avoid potential vasoconstriction from hyperoxia).

**Reference:** Adapted from American Heart Association (AHA) Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care, and the European Society of Cardiology (ESC) Guidelines for the management of acute coronary syndromes.

## 핵심 개념

- **PQRST Mnemonic** — A systematic pain assessment tool: Provocation/Palliation, Quality, Region/Radiation, Severity, Timing. It helps characterize chest pain to differentiate cardiac ischemia from other causes.
- **Acute Coronary Syndrome (ACS)** — A spectrum of conditions caused by a sudden reduction in blood flow to the heart, including unstable angina and myocardial infarction. It is a life-threatening emergency requiring rapid identification.
- **Diaphoresis** — Excessive sweating, often a sign of sympathetic nervous system activation in response to stress, pain, or reduced cardiac output during a myocardial infarction.

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