A nurse is assessing a patient's cardiovascular system. Which assessment finding would indicate normal cardiac function?

An apical pulse of 72 bpm with regular rhythm indicates normal cardiac function within the 60-100 bpm range. Other findings (bradycardia with irregular rhythm, severe hypertension, S3 gallop) are abnormal and suggest cardiac dysfunction.

Core Nursing Explanation Key Concept Analysis: This question tests the ability to differentiate between normal and abnormal cardiovascular assessment findings. A fundamental nursing skill is the accurate interpretation of vital signs and heart sounds to determine a patient's baseline and identify deviations. Normal cardiac function is characterized by a regular heart rhythm and a rate within the standard adult range of 60-100 beats per minute (bpm).

Answer Rationale: Key Point! An Apical pulse is the most accurate method for assessing the heart rate and rhythm, as it directly listens to the heart's apex. A rate of 72 bpm falls within the normal range, and a regular rhythm indicates normal electrical conduction through the heart, signifying effective cardiac function.

Distractor Analysis: Watch out for confusion!
① Heart rate of 45 bpm is bradycardia (abnormally slow). An irregular rhythm further indicates an arrhythmia, such as sinus arrhythmia or heart block, which is not normal.
② A Blood pressure of 180/110 mmHg is classified as Stage 2 Hypertension. Consistently high blood pressure is a major risk factor for cardiac dysfunction, including heart failure and myocardial infarction (MI), and is not a sign of normal function.
③ An S3 gallop rhythm is an abnormal heart sound often heard in conditions like heart failure (HF). It occurs during early diastole as blood fills a ventricle that is already stiff or overfilled, indicating pathology, not normalcy.

Related Concepts: Understanding normal parameters is the first step in assessment. Nurses must also know the implications of abnormal findings: bradycardia can lead to poor perfusion, hypertension strains the heart and vessels, and an S3 gallop is a classic sign of fluid volume overload in heart failure. Concept Summary

Finding	Normal vs. Abnormal	Clinical Significance
Apical Pulse (Rate/Rhythm)	Normal: 60-100 bpm, regular	Baseline indicator of cardiac output and electrical system function.
Bradycardia ( 임상 시나리오 Nursing Clinical Practice Guide Clinical Scenario: You are a nurse on a medical-surgical unit admitting Mr. Jones, a 58-year-old with a history of hypertension. As part of your initial assessment, you perform a cardiovascular assessment. Nursing Intervention Strategy: Assessment: Perform a systematic assessment. First, obtain vital signs (BP, HR, RR, Temp, SpO2). Then, specifically assess the apical pulse for a full minute to determine the rate and rhythm. Auscultate heart sounds at all four valve areas (aortic, pulmonic, tricuspid, mitral/apical) with the diaphragm and bell of the stethoscope. Nursing Diagnosis/Planning: Based on findings: If normal (like option 4), document the baseline. If abnormal (like bradycardia or S3), identify potential nursing diagnoses such as Decreased Cardiac Output or Risk for Ineffective Tissue Perfusion. Implementation & Evaluation: For abnormal findings, notify the healthcare provider. For hypertension, educate on lifestyle modifications and medication adherence. For an S3 gallop in a heart failure patient, closely monitor intake/output, daily weights, and respiratory status. Evaluate the effectiveness of interventions by reassessing vital signs and symptoms. Patient Safety and Precautions: Always verify an irregular pulse or bradycardia with an apical assessment, as radial pulses can be unreliable. When auscultating heart sounds, ensure a quiet environment. Remember that an S3 gallop is best heard with the bell of the stethoscope lightly placed at the apex with the patient in the left lateral decubitus position. Nursing Procedure & Medication Flow Apical Pulse Assessment Procedure: 1. Explain the procedure to the patient. 2. Assist the patient to a supine or sitting position. 3. Locate the apical pulse (5th intercostal space, midclavicular line). 4. Use the diaphragm of the stethoscope. 5. Count the heartbeats for a full 60 seconds, noting the rhythm (regular or irregular). 6. Document the rate, rhythm, and any abnormal sounds. Medication Connection: If a patient is on cardiac medications (digoxin, beta-blockers, antiarrhythmics), always assess the apical pulse before administration. Hold the medication and consult the provider if the heart rate is below the prescribed parameters (often 핵심 개념 Apical Pulse — The pulse auscultated over the apex of the heart, typically at the 5th intercostal space at the midclavicular line. It is the most accurate assessment of heart rate and rhythm. Bradycardia — A heart rate less than 60 beats per minute. Can be normal in athletes or pathological due to medication, heart block, or hypothyroidism. S3 Gallop — An abnormal heart sound (ventricular gallop) heard in early diastole. In adults, it often indicates ventricular volume overload and is a classic sign of heart failure. Hypertension — Persistently elevated blood pressure. Stage 2 Hypertension is defined as systolic ≥140 mmHg or diastolic ≥90 mmHg. It is a major risk factor for cardiovascular disease. Cardiac Output — The volume of blood pumped by the heart per minute (CO = Stroke Volume x Heart Rate). Normal function requires adequate CO to meet the body's metabolic demands. 마이메르시로 국가고시 완벽 대비 기출문제와 상세 해설을 무료로. 내 약점을 분석하고 진도를 관리하며 더 똑똑하게 공부하세요. 무료로 시작하기 App Store Google Play 학습 참고용입니다. 실제 임상은 최신 지침과 소속 기관 프로토콜을 따르세요.