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Difficulty: MediumPhysiological Adaptation

A nurse is evaluating a client who sustained blunt abdominal trauma in a motor vehicle collision. Which of the following assessment findings should the nurse identify as early indicators of compensatory hypovolemic shock? (Select all that apply.)

  1. Narrowing pulse pressureAnswer
  2. Heart rate of 118 beats/minAnswer
  3. New-onset restlessnessAnswer
  4. D
    Systolic blood pressure of 76 mm Hg
  5. E
    Warm, flushed skin
  6. F
    Bounding peripheral pulses

Answer

The early indicators of compensatory hypovolemic shock include a narrowing pulse pressure, tachycardia, and new-onset restlessness.
During the early compensatory phase of hypovolemic shock, the body activates the sympathetic nervous system to maintain cardiac output and vital organ perfusion. This neurohormonal response results in an increased heart rate (tachycardia) and peripheral vasoconstriction, which elevates the diastolic pressure and creates a narrowing pulse pressure. Additionally, the brain is highly sensitive to slight decreases in oxygen delivery, making subtle behavioral changes like restlessness, anxiety, or mild confusion some of the earliest clinical indicators of impaired perfusion.

Step-by-Step Solution

1
Identify the underlying pathophysiology of the early (compensatory) stage of hypovolemic shock.
The body activates the sympathetic nervous system and the renin-angiotensin-aldosterone system to maintain cardiac output and tissue perfusion in response to volume loss.
Understanding the physiologic response helps differentiate early compensatory signs from late decompensated signs.
2
Evaluate each clinical finding to determine if it reflects early compensation or late failure.
Tachycardia, a narrowing pulse pressure, and early cerebral hypoxia (restlessness) are compensatory. Severe hypotension is a sign that compensation has failed.
Recognizing signs before decompensation occurs is critical for life-saving interventions.
3
Distinguish the signs of hypovolemic shock from other classifications of shock.
Hypovolemia presents with cool skin and thready pulses, eliminating options describing warm skin or bounding pulses, which indicate distributive shock.
Different types of shock have contrasting early clinical presentations based on their effect on systemic vascular resistance.

Key Concept

Early Recognition of Compensatory Hypovolemic Shock
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Topics

Physiological Adaptation

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