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학습 자료 둘러보기 →Following major abdominal surgery, the most sensitive early indicator of hypovolemic shock is a compensatory rise in heart rate. A change from 78 bpm to 115 bpm with a weak, thready pulse signals a critical drop in stroke volume.
This finding demands immediate intervention, as it precedes a drop in blood pressure. The body maintains cardiac output via tachycardia, but this compensation is finite. Suspect concealed hemorrhage or significant third-spacing of fluids.
Do not wait for hypotension. Immediately assess the surgical site for distention or bleeding, verify IV access, initiate fluid resuscitation as ordered, and notify the rapid response team. A heart rate increase is a late sign of deterioration if missed.
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