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Zorluk: ZorPhysiological Adaptation

A nurse is caring for a client who sustained a complete spinal cord transection at the T2 level 18 hours ago. Which of the following concurrent clinical indicators should alert the nurse that the client is experiencing neurogenic shock? Select all that apply.

  1. Mean arterial pressure (MAP) of 52 mm HgCevap
  2. Apical pulse of 46 beats/minuteCevap
  3. Warm, flushed skin below the level of the transectionCevap
  4. D
    Narrowing of the pulse pressure
  5. E
    Sinus tachycardia at 114 beats/minute

Cevap

The clinical indicators of neurogenic shock are a mean arterial pressure (MAP) of 52 mm Hg, an apical pulse of 46 beats/minute, and warm, flushed skin below the level of the transection.
Neurogenic shock is a type of distributive shock that occurs following spinal cord injuries typically above the T6 level. The injury disrupts sympathetic nervous system pathways, leaving the parasympathetic (vagal) nervous system unopposed. This pathophysiology produces a distinct triad of clinical signs: massive vasodilation leading to severe hypotension (e.g., MAP of 52 mm Hg), unopposed vagal tone resulting in profound bradycardia (e.g., pulse of 46 beats/minute), and peripheral pooling of blood causing the skin below the injury to become warm, flushed, and dry (anhidrosis).

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1
Analyze the client's risk factors based on the clinical presentation.
The client has a T2 spinal cord transection, placing them at high risk for neurogenic shock due to disruption of sympathetic pathways.
Injuries above the T6 level can sever the descending sympathetic pathways from the brainstem to the thoracolumbar blood vessels and heart.
2
Differentiate the hemodynamic profile of neurogenic shock from other forms of shock.
Neurogenic shock is characterized by loss of sympathetic tone, leading to massive vasodilation and unopposed vagal tone, unlike hypovolemic or cardiogenic shock which feature sympathetic compensation.
Understanding the underlying pathophysiology prevents confusing compensatory signs (tachycardia, vasoconstriction) with true neurogenic signs.
3
Evaluate each clinical indicator against the pathophysiology of neurogenic shock.
Hypotension (MAP of 52 mm Hg), bradycardia (pulse of 46 beats/minute), and warm/flushed skin perfectly match the profile. Narrowing pulse pressure and tachycardia are compensatory responses seen in other shock states.
Accurate identification of specific vital sign trends is required to diagnose the exact type of distributive shock.

Anahtar Kavram

Neurogenic shock presents with a unique triad of hypotension, bradycardia, and warm, dry skin due to the loss of sympathetic nervous system tone and unopposed parasympathetic stimulation following a high spinal cord injury.
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Physiological Adaptation

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