# The patient's arterial pressure waveform shows a sharp ______ wave in early systole, followed by a secondary rise, suggesting aortic stenosis.

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> url: https://mymerci.kr/pages/nclex_q.php?qn_id=168420  
> language: ko  
> subject: Diseases of the circulatory system

## 문제

The patient's arterial pressure waveform shows a sharp ______ wave in early systole, followed by a secondary rise, suggesting aortic stenosis.

## 보기

1. percussion **✔ 정답**
2. pressure
3. pulsus
4. systolic
5. upstroke

**정답: 1**

## 해설

A percussion wave in early systole followed by a delayed secondary rise (anacrotic pulse) is characteristic of aortic stenosis. This pattern reflects the initial forceful ejection followed by delayed flow through the stenotic aortic valve.

## 임상 시나리오

Aortic Stenosis Waveform Characteristics:
- Percussion wave: Initial sharp upstroke in early systole
- Anacrotic pulse: Delayed secondary rise
- Pulsus tardus: Slow-rising pulse
- Pulsus parvus: Diminished pulse amplitude
- Systolic ejection murmur: Crescendo-decrescendo
- Carotid pulse: Delayed upstroke and peak
- Reduced stroke volume
- Left ventricular hypertrophy
- Increased afterload
- Valvular calcification
- Decreased valve area
- Pressure gradient across valve
- Concentric remodeling
- Diastolic dysfunction
- Reduced cardiac output

## 핵심 개념

- **percussion** — A sudden, sharp rise in pressure or pulse wave that occurs during the initial phase of systolic ejection
- **pressure** — The force exerted by blood against the walls of blood vessels, measured in millimeters of mercury (mmHg)
- **pulsus** — A Latin term referring to the rhythmic expansion of arteries with each heartbeat
- **systolic** — Relating to or occurring during the contraction phase of the heart when blood is ejected from the ventricles
- **upstroke** — The ascending portion of a pulse wave that represents the initial rise in pressure during systole

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