# The patient's heart demonstrates ______ dysfunction, where the ventricle cannot relax properly during diastole.

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=168382  
> language: ko  
> subject: Diseases of the circulatory system

## 문제

The patient's heart demonstrates ______ dysfunction, where the ventricle cannot relax properly during diastole.

## 보기

1. diastolic **✔ 정답**
2. systolic
3. cardiac
4. myocardial
5. ventricular

**정답: 1**

## 해설

Diastolic dysfunction refers to the heart's inability to properly relax and fill with blood during the diastolic phase. This condition leads to impaired ventricular filling despite normal contractile function, often resulting in heart failure with preserved ejection fraction.

## 임상 시나리오

• Diastolic dysfunction: Impaired relaxation of heart muscle during filling phase
• Key characteristics:
- Stiff/rigid ventricle walls
- Decreased compliance
- Elevated filling pressures
- Normal ejection fraction

• Common causes:
- Hypertension
- Aging
- Left ventricular hypertrophy
- Diabetes
- Coronary artery disease

• Clinical manifestations:
- Dyspnea
- Exercise intolerance
- Pulmonary congestion
- Peripheral edema

• Diagnostic methods:
- Echocardiography
- Doppler imaging
- E/A ratio assessment
- Tissue Doppler
- B-type natriuretic peptide levels

• Treatment approaches:
- Blood pressure control
- Rate control
- Diuretics
- ACE inhibitors
- Beta blockers

## 핵심 개념

- **diastolic** — Relating to the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood
- **systolic** — Relating to the phase of the heartbeat when the heart muscle contracts and pumps blood out of the heart
- **cardiac** — Relating to the heart or heart-related conditions in general
- **myocardial** — Relating to the muscular tissue of the heart
- **ventricular** — Relating to the ventricles, which are the lower chambers of the heart

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