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生理適應 · MEDIUM · MCQ

一位病人被診斷為低血容性休克。下列哪項發現是最早期的臨床徵象?

A client is diagnosed with hypovolemic shock. Which finding is the earliest clinical sign?

  • ATachycardia✓ 正解
    心跳過速
  • BHypotension
    低血壓
  • COliguria
    少尿
  • DConfusion
    意識混亂
Explanation · 中文詳解

低血容性休克(Hypovolemic shock)發生時,身體的代償機制會優先維持心輸出量。心跳過速(Tachycardia)是身體嘗試透過增加心率來補償血液流失,維持血壓的最早反應。低血壓(Hypotension)則是晚期失代償徵象,當身體已無法代償時才會出現。尿量減少與意識不清皆為進展後的表現。護理師需識別心跳過速這一早期徵象,以便及時介入補液。

Tachycardia is the earliest clinical sign of hypovolemic shock, representing the body's primary compensatory mechanism to maintain cardiac output. Hypotension is a late sign indicating decompensation, while oliguria and confusion occur as perfusion deficits progress.

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