# The patient's peripheral pulses show ______ delay between the radial and femoral pulses, suggesting aortic coarctation.

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> url: https://mymerci.kr/pages/nclex_q.php?qn_id=168404  
> language: ko  
> subject: Congenital malformations, deformations and chromosomal abnormalities

## 문제

The patient's peripheral pulses show ______ delay between the radial and femoral pulses, suggesting aortic coarctation.

## 보기

1. radio-femoral **✔ 정답**
2. arterial
3. temporal
4. pulse
5. conduction

**정답: 1**

## 해설

Radio-femoral delay is a characteristic finding in aortic coarctation, where there is a noticeable time difference between the radial (arm) and femoral (leg) pulses. This delay occurs due to narrowing of the aorta, which impedes blood flow to the lower body.

## 임상 시나리오

Aortic Coarctation:
- Congenital narrowing of aorta, typically near ductus arteriosus
- Clinical findings:
* Radio-femoral pulse delay
* Upper extremity hypertension
* Lower extremity hypotension
* Weak/absent femoral pulses
* Systolic murmur
- Associated conditions:
* Bicuspid aortic valve (50-80%)
* Turner syndrome
* VSD, PDA
- Complications:
* Left ventricular hypertrophy
* Heart failure
* Aortic rupture
* Cerebral hemorrhage
- Diagnosis:
* Chest X-ray: Figure-3 sign
* Echocardiogram
* MRA/CTA
- Treatment:
* Surgical repair
* Balloon angioplasty
* Regular follow-up

## 핵심 개념

- **radio-femoral** — Relating to the time difference between pulses felt in the radial artery of the wrist and the femoral artery in the groin
- **arterial** — Relating to or affecting the arteries, which are blood vessels that carry blood away from the heart
- **temporal** — Relating to or situated in the temples of the head or concerning time
- **pulse** — The rhythmical throbbing of arteries caused by the successive contractions of the heart
- **conduction** — The process by which energy or signals are transmitted through a medium or system

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