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Difficulty: MediumPhysiological Adaptation

A nurse is evaluating a client who presents to the emergency department with severe hematemesis. Which clinical manifestations indicate the client is experiencing the compensatory (early) stage of hypovolemic shock? Select all that apply.

  1. Restlessness and mild confusionAnswer
  2. Apical heart rate of 118 beats/minuteAnswer
  3. C
    Systolic blood pressure of 72 mm Hg
  4. Respiratory rate of 28 breaths/minuteAnswer
  5. E
    Arterial blood gas showing respiratory acidosis

Answer

The correct findings indicating the compensatory (early) stage of hypovolemic shock are restlessness and mild confusion, an apical heart rate of 118 beats/minute, and a respiratory rate of 28 breaths/minute.
In the early (compensatory) stage of hypovolemic shock, the body attempts to maintain tissue perfusion and cardiac output despite volume loss. The sympathetic nervous system stimulates an increase in heart rate (tachycardia) and respiratory rate (tachypnea). Blood is shunted away from non-vital organs, and a slight decrease in cerebral perfusion leads to the earliest neurological changes, such as restlessness, anxiety, and mild confusion. Because compensatory mechanisms are actively working, the blood pressure remains relatively normal at this stage.

Step-by-Step Solution

1
Identify the pathophysiology of the compensatory stage of hypovolemic shock.
The body activates the sympathetic nervous system to maintain cardiac output and tissue perfusion despite fluid volume loss.
Understanding the body's initial physiological response helps distinguish early adaptive mechanisms from late decompensatory failure.
2
Evaluate each clinical manifestation to determine if it represents an early adaptation or a late failure.
Tachycardia, tachypnea, and subtle neurological changes (restlessness) are early compensatory mechanisms. Profound hypotension and respiratory acidosis represent late decompensation.
Accurate clinical judgment requires distinguishing the timeline of shock progression to prioritize life-saving interventions.

Key Concept

During the compensatory stage of hypovolemic shock, sympathetic nervous system activation maintains blood pressure while causing tachycardia, tachypnea, and peripheral vasoconstriction. Restlessness is typically the earliest sign due to slightly decreased cerebral perfusion.
Estimated Time:1m 30s
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Physiological Adaptation

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