ATI RN
ATI Pharmacology Proctored Exam 2024
1. What is the classification of Ondansetron?
- A. Antihypertensive
- B. Antiarrhythmic
- C. Antiemetic
- D. Antiulcer agent
Correct answer: C
Rationale: Ondansetron is classified as an antiemetic. It is commonly used to prevent nausea and vomiting, especially in patients undergoing chemotherapy or surgery. Choice A, Antihypertensive, is incorrect as Ondansetron is not used to treat high blood pressure. Choice B, Antiarrhythmic, is incorrect as Ondansetron is not used to manage heart rhythm abnormalities. Choice D, Antiulcer agent, is incorrect as Ondansetron is not primarily indicated for treating ulcers.
2. What is a desired outcome of the drug Phenytoin?
- A. Decrease symptoms of PTSD
- B. Resolution of signs of infection
- C. Decrease or cessation of seizures without excessive sedation
- D. Prevention or relief of bronchospasm
Correct answer: C
Rationale: The correct answer is C: Decrease or cessation of seizures without excessive sedation. Phenytoin is primarily used as an antiepileptic medication to manage and prevent seizures. It does not directly impact symptoms of PTSD (Choice A), resolution of signs of infection (Choice B), or prevention or relief of bronchospasm (Choice D). Therefore, the desired outcome of Phenytoin is to control seizures effectively while avoiding excessive sedation.
3. A client has a new prescription for spironolactone. The client should avoid which of the following foods?
- A. Salt substitutes
- B. Apples
- C. Chicken
- D. Bananas
Correct answer: A
Rationale: Spironolactone is a potassium-sparing diuretic. Clients prescribed spironolactone should avoid salt substitutes because they often contain potassium. Increased potassium intake can lead to hyperkalemia, which is a potential side effect of spironolactone.
4. A client receiving chemotherapy with Methotrexate asks why Leucovorin is being given. Which of the following responses should the nurse use?
- A. Leucovorin reduces the risk of a transfusion reaction from Methotrexate.
- B. Leucovorin increases platelet production and prevents bleeding.
- C. Leucovorin potentiates the cytotoxic effects of Methotrexate.
- D. Leucovorin protects healthy cells from Methotrexate's toxic effects.
Correct answer: D
Rationale: Leucovorin, a folic acid derivative and an antagonist to Methotrexate, is given within 12 hours of high doses of Methotrexate to protect healthy cells from the toxic effects of Methotrexate. It helps to reduce the bone marrow suppression and gastrointestinal side effects caused by Methotrexate, supporting the client's overall well-being during chemotherapy treatment. Choices A, B, and C are incorrect because Leucovorin does not reduce the risk of a transfusion reaction from Methotrexate, increase platelet production, prevent bleeding, or potentiate the cytotoxic effects of Methotrexate. Instead, Leucovorin works by rescuing healthy cells from the toxic effects of Methotrexate.
5. A client has a new prescription for a Nitroglycerin transdermal patch. Which of the following instructions should the nurse include?
- A. Apply the patch to the same site each day.
- B. Remove the patch at night.
- C. Cover the patch with a heating pad.
- D. Apply the patch to a hairless area of skin.
Correct answer: D
Rationale: The correct instruction is to apply the Nitroglycerin transdermal patch to a hairless area of skin. This ensures proper absorption of the medication. It is important to rotate the application site daily to prevent skin irritation and tolerance development. Applying the patch to the same site each day can lead to decreased efficacy and potential skin reactions. Removing the patch at night is not necessary as the patches are usually worn continuously to provide constant medication delivery. Covering the patch with a heating pad can increase the absorption of the medication and lead to an overdose, which is not recommended.
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