what is the pharmacological action of metformin
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Nursing Elites

ATI RN

ATI Pharmacology Proctored Exam 2024

1. What is the pharmacological action of metformin?

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.

2. A client has a new prescription for Etanercept for Rheumatoid Arthritis. Which of the following statements by the client indicates an understanding of the teaching?

Correct answer: A

Rationale: The correct answer is A because Etanercept can cause bone marrow suppression, so it is crucial to monitor blood counts regularly to detect any early signs of adverse effects.

3. A healthcare provider is reviewing a client's medication history and notes a new prescription for Enalapril. The healthcare provider should monitor the client for which of the following as an adverse effect of this medication?

Correct answer: B

Rationale: Enalapril, an ACE inhibitor, can cause hyperkalemia as an adverse effect due to decreased aldosterone levels, leading to potassium retention. Monitoring potassium levels is essential to prevent complications associated with hyperkalemia. Bradycardia (Choice A) is not a common adverse effect of Enalapril. Enalapril does not typically affect glucose levels, so hypoglycemia (Choice C) is not a common concern with this medication. Enalapril does not directly impact calcium levels, so hypocalcemia (Choice D) is not a typical adverse effect.

4. A client is receiving discharge teaching for Metronidazole prescribed for an infection. Which statement by the client indicates an understanding of the teaching?

Correct answer: A

Rationale: The correct answer is A. Alcohol should be avoided while taking Metronidazole because it can lead to a disulfiram-like reaction, causing severe nausea and vomiting. It is important for the client to understand this to prevent adverse reactions and ensure the effectiveness of the medication in treating the infection. Choices B, C, and D are incorrect because taking Metronidazole with food is recommended to decrease gastrointestinal upset, and there is no specific need to increase or avoid dairy products while taking this medication.

5. A client with thrombophlebitis receiving heparin by continuous IV infusion asks the nurse how long it will take for the heparin to dissolve the clot. Which of the following responses should the nurse give?

Correct answer: C

Rationale: The correct response is C. Heparin does not dissolve clots; it prevents new clots from forming. Heparin works by inhibiting the formation of new clots and the extension of existing clots, rather than directly dissolving them. The client should be informed that the purpose of heparin therapy is to prevent the clot from getting larger and to reduce the risk of new clots forming. Choices A, B, and D are incorrect. Choice A talks about reaching a therapeutic blood level of heparin, which is not related to clot dissolution. Choice B deflects the question to a pharmacist without providing relevant information. Choice D inaccurately suggests that an oral medication will dissolve the clot, which is not the mechanism of action for heparin.

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