ATI RN
ATI Pediatrics Unit 2 Exam Questions
Extract:
A nurse and a newly licensed nurse are providing care for a client who has distributive shock related to an anaphylactic reaction.
Question 1 of 5
A nurse and a newly licensed nurse are providing care for a client who has distributive shock related to an anaphylactic reaction. How should the nurse explain the pathophysiology of distributive shock to the newly licensed nurse?
Correct Answer: A
Rationale: The correct answer is A: Distributive shock occurs due to systemic vasodilation. In distributive shock, there is widespread vasodilation leading to decreased systemic vascular resistance, which results in poor perfusion to vital organs. This vasodilation can be caused by various factors such as anaphylaxis, sepsis, or neurogenic shock. The loss of vascular tone leads to pooling of blood in the peripheral vasculature, reducing venous return to the heart. This results in decreased cardiac output and inadequate tissue perfusion.
Choices B, C, and D are incorrect. Increased systemic vascular resistance (
B) is seen in conditions like cardiogenic shock, not distributive shock. Loss of blood volume (
C) typically leads to hypovolemic shock. Loss of myocardial contractility (
D) is characteristic of cardiogenic shock, where there is impaired heart function leading to decreased cardiac output.
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Question 2 of 5
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Question 5 of 5
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