Neurogenic shock is also known as?

NORCET 2 - 2021 (shift-1)

Medical & Surgical Nursing

Easy

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

Neurogenic shock is classified as a type of distributive shock.
Distributive shock is defined by massive vasodilation and a decrease in systemic vascular resistance, leading to a relative hypovolemia.
In neurogenic shock, this vasodilation is caused by the loss of sympathetic tone, typically from a high spinal cord or brain injury.
This loss of sympathetic stimulation to the vascular smooth muscle results in a profound decrease in vasomotor tone and blood pressure.
Unlike other forms of shock, neurogenic shock often presents with bradycardia (slow heart rate) due to unopposed parasympathetic (vagal) stimulation.

Option A: This is not a recognized medical term for any type of shock.
Option C: This is not a standard medical classification for shock.
Option D: This option is incorrect because a correct classification exists among the choices. Neurogenic shock is a well-defined subtype of distributive shock.

Visual 1: Flowchart: A flowchart illustrating the main classifications of shock (Hypovolemic, Cardiogenic, Obstructive, Distributive) with their respective subtypes (e.g., Septic, Anaphylactic, Neurogenic under Distributive). This helps visualize the hierarchy and relationships.
Visual 2: Diagram: A diagram comparing the hemodynamic profiles of different shock types, showing changes in cardiac output, systemic vascular resistance (SVR), and preload for each. This would highlight the low SVR characteristic of distributive shock.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of shock, specifically identifying the category for neurogenic shock as background academic context rather than a clinical decision trigger.
Recognizing neurogenic shock as a distributive type is critical for treatment. The primary goal is to restore vascular tone with vasopressors (e.g., norepinephrine) and manage bradycardia, rather than just administering large volumes of fluid which might be the primary treatment in hypovolemic shock.
A key diagnostic clue for neurogenic shock versus other shock states is the presence of hypotension WITH bradycardia and warm, dry skin, whereas most other shock states present with tachycardia and cool, clammy skin.
What if? If a trauma patient with hypotension presents with tachycardia and cool extremities, the primary suspicion should shift from neurogenic shock to hypovolemic (hemorrhagic) shock. The immediate priority would be to control bleeding and rapidly administer blood products and fluids, not primarily vasopressors.

How to Approach the Question

First, identify the core concept in the question, which is 'neurogenic shock'.
The question asks for an alternative name or classification ('also known as'). This is a factual recall question.
Recall the major categories of circulatory shock: Hypovolemic, Cardiogenic, Obstructive, and Distributive.
Think about the underlying pathophysiology of neurogenic shock: it involves massive vasodilation due to a loss of sympathetic tone.
Match this pathophysiology to the correct shock category. Widespread vasodilation is the defining feature of distributive shock.
Evaluate the given options. 'Distributive shock' is present. 'Defective shock' and 'Destructive shock' are not standard terms. Therefore, 'Distributive shock' is the correct answer.

Concept Tested & Keywords

Concept Tested: Classification of shock, specifically identifying the category for neurogenic shock.
Stem keywords: Neurogenic shock
Lead-in keywords: also known as
Negative lead-in flag: false

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