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Difficulty: HardPhysiological Adaptation

A practical nurse (PN) is collecting data on an older adult client who is 2 hours post-operative following an open bowel resection. Which of the following data collection findings should the PN recognize as early indicators of hypovolemic shock requiring immediate reporting to the registered nurse? Select all that apply.

  1. Heart rate increasing steadily from 84 to 114 beats per minute over the last hour.Answer
  2. The client exhibiting new-onset restlessness and frequently asking for sips of water.Answer
  3. Capillary refill time on the fingers is delayed to 5 seconds.Answer
  4. D
    The client reporting sharp incisional pain rated 7 on a 0 to 10 numerical pain scale.
  5. E
    Blood pressure reading of 118/76 mmHg compared to a preoperative baseline of 124/80 mmHg.
  6. F
    The most recent laboratory report showing a hemoglobin level of 14.2 g/dL (142 g/L).

Answer

The findings indicating early hypovolemic shock are the steadily increasing heart rate, new-onset restlessness with increased thirst, and the delayed capillary refill time.
The correct findings highlight the body's early physiological adaptation to fluid loss. As intravascular volume decreases, the sympathetic nervous system initiates compensatory mechanisms to maintain perfusion to vital organs. This results in an increased heart rate (tachycardia) to boost cardiac output, and peripheral vasoconstriction that delays capillary refill. Additionally, early cellular hypoxia and decreased cerebral perfusion often manifest as behavioral changes, such as new-onset restlessness and anxiety, accompanied by an increased physiological drive for thirst.

Step-by-Step Solution

1
Analyze the clinical scenario to identify the client's risk factors.
The client is 2 hours post-operative from major abdominal surgery, placing them at high risk for fluid volume deficit and internal hemorrhage.
Recognizing post-operative risks directs the focus of data collection toward signs of circulatory compromise.
2
Recall the physiological compensatory mechanisms triggered during the early stages of hypovolemic shock.
Early shock activates the sympathetic nervous system, causing tachycardia, peripheral vasoconstriction, and subtle central nervous system changes before blood pressure significantly drops.
Understanding the timeline of physiological adaptation allows the nurse to distinguish between early warning signs and late manifestations.
3
Evaluate each finding against the expected signs of early hypovolemic shock.
Tachycardia, restlessness/thirst, and delayed capillary refill are acute compensatory changes. Incisional pain, slightly lower but normal blood pressure, and a normal hemoglobin level are expected or non-emergent post-operative findings.
This systematic evaluation ensures that life-threatening airway, breathing, and circulation (ABC) complications are prioritized over expected localized symptoms.

Key Concept

Early recognition of hypovolemic shock relies on identifying compensatory sympathetic nervous system responses (tachycardia, restlessness, peripheral vasoconstriction) rather than waiting for a significant drop in blood pressure.
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Topics

Physiological Adaptation

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