A client with a severe soft tissue infection is receiving a newly prescribed intravenous antibiotic. Ten minutes after the infusion begins, the client becomes visibly anxious and states, "My throat feels very tight." Which of the following additional assessment findings would indicate the client is developing anaphylactic shock? Select all that apply.
- Diffuse urticaria and generalized pruritusCevap
- Expiratory wheezing and tachypneaCevap
- Tachycardia with a weak, thready pulseCevap
- DSudden elevation in systolic blood pressure
- EArterial blood gas results demonstrating respiratory alkalosis
Cevap
The correct findings indicating anaphylactic shock are diffuse urticaria and generalized pruritus, expiratory wheezing and tachypnea, and tachycardia with a weak, thready pulse.
Anaphylactic shock is a severe, systemic hypersensitivity reaction characterized by massive release of histamine and other chemical mediators. This leads to increased capillary permeability causing cutaneous reactions like urticaria and pruritus. It also causes profound smooth muscle contraction in the airways, resulting in bronchospasm, wheezing, and tachypnea. Finally, systemic vasodilation causes a rapid drop in blood pressure, prompting a compensatory tachycardia with a weak, thready pulse due to decreased cardiac output.
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Pathophysiology and clinical manifestations of anaphylactic shock