# The patient's heart shows decreased ______ fraction on echocardiogram, indicating systolic heart failure.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=168379  
> language: ko  
> subject: Diseases of the circulatory system

## 문제

The patient's heart shows decreased ______ fraction on echocardiogram, indicating systolic heart failure.

## 보기

1. ejection **✔ 정답**
2. cardiac
3. systolic
4. contractile
5. ventricular

**정답: 1**

## 해설

Ejection fraction is the percentage of blood that's pumped out of the left ventricle with each contraction. A decreased ejection fraction is a key indicator of systolic heart failure, where the heart's ability to pump blood effectively is impaired.

## 임상 시나리오

Key Learning Points:

1. Ejection Fraction (EF):
- Normal EF range: 55-70%
- Reduced EF:

## 핵심 개념

- **ejection** — The act of pumping out or expelling blood from the heart chambers during contraction
- **cardiac** — Relating to the heart or its functions
- **systolic** — Relating to the contraction phase of the heart when blood is pumped out
- **contractile** — Having the ability or property to contract or shorten
- **ventricular** — Relating to the ventricles, the lower chambers of the heart

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