# The nurse observes a ______ pulse, where blood flow quickly rises and falls, commonly seen in aortic regurgitation.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=168384  
> language: ko  
> subject: Diseases of the circulatory system

## 문제

The nurse observes a ______ pulse, where blood flow quickly rises and falls, commonly seen in aortic regurgitation.

Chicago Med Season 3 Episode 9

## 보기

1. water-hammer **✔ 정답**
2. bounding
3. collapsing
4. thready
5. weak

**정답: 1**

## 해설

A water-hammer pulse, also known as Corrigan's pulse, is characterized by a forceful expansion followed by a sudden collapse. This distinctive pulse is a classic sign of aortic regurgitation, where blood flows backward through a leaky aortic valve.

## 임상 시나리오

• Water-hammer pulse (Corrigan's pulse)
- Rapid upstroke and collapse of pulse
- Strong systolic pressure with rapid diastolic runoff
- Key clinical sign of aortic regurgitation
- Also seen in:
* Patent ductus arteriosus
* Hyperthyroidism
* High fever states

• Aortic regurgitation characteristics:
- Diastolic murmur
- Wide pulse pressure
- Left ventricular hypertrophy
- Displaced apical impulse
- Early diastolic decrescendo murmur

• Other pulse types:
- Bounding: Full, strong pulse
- Thready: Weak, thin pulse
- Collapsing: Rapid fall in pressure
- Alternating: Alternating strong/weak beats

• Assessment points:
- Rate
- Rhythm
- Volume
- Character
- Symmetry

## 핵심 개념

- **water-hammer** — A rapid, forceful pulse characterized by a sudden rise and fall in blood pressure, typically associated with aortic regurgitation
- **bounding** — A strong, full pulse that can be easily felt and appears to push against the examiner's fingers with excessive force
- **collapsing** — A pulse that is initially strong but quickly diminishes or collapses, often associated with cardiovascular conditions
- **thready** — A very fine, weak pulse that is difficult to palpate and often indicates poor peripheral circulation
- **weak** — A pulse that is faint and difficult to detect, indicating reduced blood flow or cardiovascular compromise

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