病人被醫囑給予 furosemide 40 mg 靜脈注射。若發現下列何種情況，護理師應暫停給藥並聯繫醫師？
A client is prescribed furosemide 40 mg IV push. Which assessment finding requires the nurse to withhold the medication and contact the provider?
- AComplaints of slight thirst抱怨輕微的口渴。
- BBlood pressure of 100/60 mmHg血壓為 100/60 mmHg。
- CUrine output of 50 mL over the last hour過去一小時的尿液輸出量為 50 mL。
- DSerum potassium level of 2.8 mEq/L✓ 正解血清鉀濃度為 2.8 mEq/L。
Furosemide 為強力環利尿劑，會導致鉀離子大量隨尿液排泄。當血鉀值降至 2.8 mEq/L（正常值 3.5-5.0），屬於危險性低血鉀，極易引發心律不整甚至心跳停止，故此時給藥屬於不安全行為。低血壓（B）雖需留意，但在心衰竭病人中可能為可接受範圍；口渴為常見副作用；尿量（C）顯示藥物有效。
Furosemide is a potent loop diuretic that causes substantial urinary excretion of potassium. When the serum potassium drops to 2.8 mEq/L (normal range 3.5-5.0), this is dangerous hypokalemia, which can easily induce cardiac arrhythmias and even cardiac arrest; administering the medication in this state is unsafe. Hypotension (B) requires attention but may be acceptable in clients with heart failure; thirst is a common side effect; urine output (C) shows that the medication is effective.
在美國護理師常具備根據實驗數據暫停給藥的獨立決策權；台灣護理師通常需向值班醫師確認後方可暫停醫囑。