AACN CCRN (Adult) - Direct Care Eligibility Pathway CCRN-Adult Question # 28 Topic 3 Discussion
CCRN-Adult Exam Topic 3 Question 28 Discussion:
Question #: 28
Topic #: 3
A patient is admitted with anaphylactic shock secondary to a blood transfusion. The patient's spouse asks the nurse to explain how blood can cause a low blood pressure. The nurse responds that with anaphylactic shock the
A.
heart muscle weakens and is unable to pump effectively.
B.
peripheral blood vessels dilate, and this creates a maldistribution of volume.
C.
kidneys excrete large amounts of urine dropping the blood pressure.
D.
autonomic nervous system is disrupted dropping blood pressure.
Anaphylactic shock is characterized by widespread vasodilation due to the release of histamine and other inflammatory mediators. This vasodilation causes a significant drop in systemic vascular resistance and maldistribution of blood volume, leading to hypotension. The explanation addresses the pathophysiological changes that occur during anaphylactic shock. References: AACN Adult CCRN Certification Review Course, AACN CCRN Exam Handbook.
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