ATI RN
ATI Nur 112 Fundamentals Exam Questions
Extract:
Question 1 of 5
An emergency drug which increases heart rate, raises blood pressure, and dilates bronchi is:
Correct Answer: C
Rationale: The correct answer is C: Epinephrine. Epinephrine is a sympathomimetic drug that acts on adrenergic receptors. It increases heart rate by stimulating beta-1 receptors, raises blood pressure by constricting blood vessels through alpha-1 receptors, and dilates bronchi by activating beta-2 receptors. Antihistamines (
A) block histamine receptors, sedatives (
B) depress the central nervous system, and hormones (
D) are chemical messengers produced by glands in the endocrine system.
Question 2 of 5
Correct Answer:
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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