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Difficulty: MediumPhysiological Adaptation

A nurse is monitoring a client who was admitted with severe acute pyelonephritis. Which of the following assessment findings would indicate that the client is entering the early, hyperdynamic phase of septic shock? Select all that apply.

  1. Bounding peripheral pulsesAnswer
  2. B
    Cool, clammy extremities
  3. Apical pulse of 124 beats/minAnswer
  4. D
    Narrowed pulse pressure
  5. Skin that is warm and flushedAnswer

Answer

The assessment findings that indicate the early, hyperdynamic phase of septic shock include bounding peripheral pulses, an apical pulse of 124 beats/min, and skin that is warm and flushed.
In the early (hyperdynamic or 'warm') phase of septic shock, the systemic inflammatory response to infection causes profound peripheral vasodilation. To compensate for this sudden drop in systemic vascular resistance and maintain adequate tissue perfusion, the heart rate and stroke volume increase significantly. This combination of massive vasodilation and increased cardiac output produces the classic signs of early septic shock: warm and flushed skin, bounding peripheral pulses, tachycardia, and a widened pulse pressure.

Step-by-Step Solution

1
Analyze the client's current diagnosis and risk factors.
The client has severe acute pyelonephritis, a significant systemic infection that places them at high risk for developing systemic inflammatory response syndrome (SIRS) and progressing to septic shock.
Identifying the underlying infectious risk is the first step in anticipating potential life-threatening hemodynamic complications.
2
Differentiate between the distinct pathophysiological phases of septic shock.
Septic shock initially presents in an early (hyperdynamic or 'warm') phase, characterized by massive vasodilation and increased cardiac output, before progressing to a late (hypodynamic or 'cold') phase characterized by intense vasoconstriction and organ failure.
Understanding the unique biphasic nature of septic shock is required to correctly identify the expected clinical manifestations during the initial deterioration.
3
Evaluate each assessment finding against the pathophysiology of the early (hyperdynamic) phase.
Profound vasodilation leads directly to warm, flushed skin and a widened pulse pressure. The compensatory increase in cardiac output required to maintain perfusion leads to tachycardia (apical pulse of 124 beats/min) and bounding peripheral pulses.
Connecting the underlying physiological adaptation to the specific clinical signs ensures accurate recognition of the client's current shock state.

Key Concept

Early septic shock (the hyperdynamic phase) is uniquely characterized by massive systemic vasodilation, which manifests clinically as warm and flushed skin, tachycardia, bounding peripheral pulses, and a widened pulse pressure.
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Physiological Adaptation

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