A client who was stung by a bee is treated with an EpiPen auto-injection. Which assessment finding indicates that the drug is working?
1. Increased blood pressure
2. Constriction of the pupils
3. Increased urinary output
4. Spasm of the bronchus
Correct Answer: 1
Rationale 1: Immediately after injection, blood pressure increases due to stimulation of alpha-1 receptors.
Rationale 2: Epinephrine causes pupillary dilation, not constriction.
Rationale 3: Epinephrine causes decreased urinary output.
Rationale 4: Epinephrine causes bronchodilation due to activation of beta-2 receptors in the bronchi, so the client can breathe freely.
Global Rationale: Immediately after injection, blood pressure increases due to stimulation of alpha-1 receptors. Epinephrine causes pupillary dilation, not constriction. Epinephrine causes decreased urinary output. Epinephrine causes bronchodilation due to activation of beta-2 receptors in the bronchi, so the client can breathe freely.
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