NurslixJournal
藥理與非經腸給藥 · EASY · MCQ

一位肺水腫病人醫囑開立 furosemide 40 mg 靜脈注射。預期的治療效果為何?

A client is prescribed furosemide 40 mg IV push for pulmonary edema. What is the expected therapeutic effect?

  • ADecreased venous return to the heart✓ 正解
    減少回流至心臟的靜脈血量
  • BRetention of sodium to maintain fluid volume
    保留鈉以維持體液容量
  • CSystemic vasoconstriction to support BP
    系統性血管收縮以支持血壓
  • DIncreased myocardial contractility
    增加心肌收縮力
Explanation · 中文詳解

Furosemide 屬於環利尿劑(Loop diuretic),在肺水腫(Pulmonary edema)急性期,其靜脈注射(IV push)具有雙重效應:一是利尿作用,二是直接的血管擴張作用。藥物能迅速擴張靜脈系統,減少回心血量(降低前負荷 Preload),從而減輕肺部鬱血與呼吸困難。這是治療心源性肺水腫的急救用藥機轉。

Furosemide is a loop diuretic. In acute pulmonary edema, IV push furosemide has a dual effect: diuresis and direct venodilation. It rapidly dilates the venous system, decreasing venous return (reducing preload), which relieves pulmonary congestion and dyspnea. This is the mechanism behind its emergency use in cardiogenic pulmonary edema.

✦ 台美臨床差異

美國醫院常見使用 IV push 快速給藥以緩解呼吸窘迫,台灣臨床亦同,但需特別注意監測鉀離子(K+)流失情形。

Related · 同分類的其他題目

More from Pharmacological & Parenteral

瀏覽全部 2,027 題 藥理與非經腸給藥 →
Jump to another chapter