ATI RN
ATI Pharmacology Proctored Exam 2024
1. A client has been on levothyroxine therapy for several months. Which of the following findings indicates a therapeutic response to the medication?
- A. Decrease in level of thyroxine (T4)
- B. Increase in weight
- C. Increase in hours of sleep per night
- D. Decrease in level of thyroid stimulating hormone (TSH)
Correct answer: D
Rationale: A therapeutic response to levothyroxine is indicated by a decrease in the level of TSH. This decrease signifies that the body requires less stimulation to produce thyroid hormone, reflecting a normalization of thyroid function due to the medication's effectiveness. Choices A, B, and C are incorrect as an increase in T4 levels, weight gain, and increased sleep hours are not indicative of a therapeutic response to levothyroxine therapy.
2. A client has a new prescription for hydrochlorothiazide. The client should monitor for which of the following adverse effects?
- A. Hyponatremia
- B. Ototoxicity
- C. Hypoglycemia
- D. Hyperkalemia
Correct answer: A
Rationale: Hyponatremia is a potential adverse effect of hydrochlorothiazide due to its diuretic action. Hydrochlorothiazide is a thiazide diuretic that can cause sodium and water loss, potentially leading to hyponatremia. Monitoring for symptoms such as weakness, confusion, and muscle cramps can help detect hyponatremia early. Ototoxicity (choice B) is not a common adverse effect of hydrochlorothiazide. Hypoglycemia (choice C) is not typically associated with hydrochlorothiazide use. Hyperkalemia (choice D) is more commonly associated with potassium-sparing diuretics rather than thiazide diuretics like hydrochlorothiazide.
3. A client has a new prescription for Nifedipine. Which of the following adverse effects should the nurse monitor?
- A. Hypertension
- B. Edema
- C. Hyperglycemia
- D. Bradycardia
Correct answer: B
Rationale: Nifedipine, a calcium channel blocker, can lead to peripheral edema as an adverse effect. The nurse should monitor the client for swelling in the lower extremities, as it indicates the onset of edema. Hypertension is typically treated with Nifedipine and is not an adverse effect of the medication. Hyperglycemia and bradycardia are not commonly associated with Nifedipine use. Therefore, the correct adverse effect to monitor for when a client is prescribed Nifedipine is edema.
4. The nurse is caring for a client who has chronic angina. Treatment for the condition has been unsuccessful. Which medication does the nurse anticipate will be prescribed?
- A. Atenolol (Tenormin)
- B. Nitroglycerin (Nitrostat)
- C. Sildenafil (Viagra)
- D. Ranolazine (Ranexa)
Correct answer: D
Rationale: In cases of chronic angina where initial treatment has not been successful, Ranolazine (Ranexa) is often prescribed. This medication helps by reducing the frequency of angina episodes. Atenolol, Nitroglycerin, and Sildenafil are also used in angina management but Ranolazine is more specifically indicated in cases of refractory angina where other treatments have failed.
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?
- A. It usually takes heparin at least 2 to 3 days to reach a therapeutic blood level.
- B. A pharmacist is the person to answer that question.
- C. Heparin does not dissolve clots. It stops new clots from forming.
- D. The oral medication you will take after this IV will dissolve the clot.
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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