ATI RN
ATI Pharmacology Proctored Exam 2023
1. A client has been prescribed Phenelzine for depression. Which of the following indicates that the client has developed an adverse effect of this medication?
- A. Orthostatic hypotension
- B. Hearing loss
- C. Gastrointestinal bleeding
- D. Weight loss
Correct answer: A
Rationale: Orthostatic hypotension is a known adverse effect of Phenelzine, a monoamine oxidase inhibitor (MAOI) used for depression. It is caused by a sudden drop in blood pressure when changing positions, leading to symptoms like dizziness or fainting. Monitoring for orthostatic hypotension is crucial during Phenelzine therapy to prevent complications. Choices B, C, and D are incorrect because hearing loss, gastrointestinal bleeding, and weight loss are not typically associated with Phenelzine use.
2. What is the pharmacological action of metformin?
- A. Blocks stimulation of beta1 and beta2.
- B. Blocks vasoconstriction and aldosterone.
- C. Acts at many levels in the CNS to produce an anxiolytic effect.
- D. Decreases hepatic glucose production.
Correct answer: D
Rationale: The correct answer is D: Decreases hepatic glucose production. Metformin's primary pharmacological action is to decrease hepatic glucose production, leading to lower blood sugar levels and improved insulin sensitivity in the liver. Choices A, B, and C are incorrect because metformin does not block stimulation of beta1 and beta2 receptors, vasoconstriction, aldosterone, or act in the CNS to produce an anxiolytic effect. Therefore, these options are not reflective of metformin's mechanism of action.
3. Which of the following is not a side effect of the cholinoreceptor blocker (Atropine)?
- A. Increased pulse
- B. Diarrhea
- C. Constipation
- D. Mydriasis
Correct answer: B
Rationale: Atropine, an anticholinergic drug, commonly causes side effects like increased pulse, mydriasis (dilated pupils), and constipation due to its inhibitory effect on the parasympathetic nervous system. Diarrhea is not typically a side effect of Atropine, making it the correct answer.
4. In caring for a client who received IV Verapamil to treat supraventricular tachycardia (SVT) and presents with a pulse rate of 98/min and blood pressure of 74/44 mm Hg, the nurse should anticipate a prescription for which of the following IV medications?
- A. Calcium gluconate
- B. Sodium bicarbonate
- C. Potassium chloride
- D. Magnesium sulfate
Correct answer: A
Rationale: In this scenario, the client is experiencing severe hypotension due to Verapamil administration. The appropriate medication to counteract the vasodilation caused by Verapamil and reverse severe hypotension is Calcium gluconate, which should be administered slowly IV. Therefore, the correct choice is Calcium gluconate (Choice A). Sodium bicarbonate (Choice B) is not indicated for hypotension related to Verapamil use. Potassium chloride (Choice C) and Magnesium sulfate (Choice D) are not the appropriate medications to address the hypotension in this situation.
5. A client is taking Desmopressin for Diabetes Insipidus. For which of the following adverse effects should the nurse monitor?
- A. Hypovolemia
- B. Hypercalcemia
- C. Agitation
- D. Headache
Correct answer: D
Rationale: Headache is an adverse effect that the nurse should monitor for in a client taking Desmopressin for Diabetes Insipidus. It can be an early sign of water intoxication, which is a potential complication of desmopressin therapy due to excessive water retention in the body.
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