# 一位服用 furosemide 的個案主訴肌肉無力和心跳不規則。護理師應首先檢查哪項檢驗數值？

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=394139&lang=zh-tw  
> language: zh-TW  
> subject: Adverse Effects/Contraindications/Interactions  
> category: PPT

## 題目

一位服用 furosemide 的個案主訴肌肉無力和心跳不規則。護理師應首先檢查哪項檢驗數值？

## 選項

1. 血紅素
2. 血清鈣
3. 血小板計數
4. 血清鉀 **✔ 正確答案**

**正確答案: 4**

## 解析

Furosemide 是一種環利尿劑，可能導致鉀離子流失。肌肉無力和心跳不規則可能表示低血鉀，進而導致心律不整。血清鉀是應優先檢查的檢驗數值。

## 深入解析

臨床判斷
環利尿劑的症狀常指向電解質流失。

記憶提示
Furosemide 會沖走鉀離子。

## 臨床情境

臨床實務指引
環利尿劑的監測包括體重、攝入/排出量、血壓、腎功能和包含鉀在內的電解質。

注意事項
心跳不規則伴隨可能的低血鉀需要立即評估。

## 重要概念

- **Furosemide** — 一種用於排除多餘體液的環利尿劑。
- **低血鉀** — 血清鉀過低，可能導致無力和心律不整。
- **環利尿劑** — 一類會增加尿量和電解質流失的利尿劑。

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