phenytoin is an antiarrhythmic and anticonvulsant that has an unlabeled use for
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Nursing Elites

ATI RN

ATI Proctored Pharmacology Test

1. Phenytoin is an antiarrhythmic and anticonvulsant that has an unlabeled use for:

Correct answer: C

Rationale: Phenytoin, an antiarrhythmic and anticonvulsant medication, is also used off-label for treating neuropathic pain. While its primary indications are for managing heart rhythm disorders and seizures, it has shown efficacy in managing neuropathic pain, expanding its clinical utility. Choices A, B, and D are incorrect as phenytoin is not commonly used for headaches, cold remedies, or antianxiety purposes.

2. A client prescribed Isosorbide Mononitrate for chronic stable Angina develops reflex tachycardia. Which of the following medications should the nurse expect to administer?

Correct answer: D

Rationale: Metoprolol, a beta-adrenergic blocker, is commonly used to treat hypertension and stable angina pectoris. It is often prescribed to decrease heart rate in clients who develop tachycardia, such as in the case of reflex tachycardia induced by Isosorbide Mononitrate, making it the appropriate choice in this scenario. Furosemide (Choice A) is a loop diuretic used for conditions like heart failure and edema, not for reflex tachycardia. Captopril (Choice B) is an ACE inhibitor primarily used for hypertension and heart failure, not for reflex tachycardia. Ranolazine (Choice C) is used for chronic angina but does not specifically address reflex tachycardia.

3. Which of the following conditions is not treated with Nifedipine?

Correct answer: D

Rationale: Nifedipine is a calcium channel blocker primarily used in the management of angina and hypertension. It is not typically used to treat arrhythmias or fluid retention. Angina is chest pain caused by reduced blood flow to the heart, and hypertension is high blood pressure. Therefore, fluid retention is the condition that is not treated with Nifedipine.

4. A client is taking Furosemide for heart failure. Which of the following findings is a priority to report to the provider?

Correct answer: D

Rationale: A urine output of 200 mL in 8 hours indicates decreased kidney function, potentially due to Furosemide therapy. This finding can suggest inadequate renal perfusion and impaired drug clearance, necessitating immediate reporting to prevent further complications like electrolyte imbalances and worsening heart failure. Choice A: Weight loss may be expected in heart failure patients due to fluid retention, but it is not an immediate concern. Choice B: A blood pressure of 104/60 mm Hg is slightly low but not a priority compared to the indication of kidney dysfunction. Choice C: A potassium level of 3.5 mEq/L is within the normal range, so it does not require immediate reporting.

5. A healthcare professional is preparing to administer a transfusion of 300 mL of pooled platelets for a client with severe Thrombocytopenia. How should the healthcare professional plan to administer the transfusion over which of the following time frames?

Correct answer: A

Rationale: Platelets are fragile components that must be administered promptly to minimize the risk of clumping. The correct administration time for platelets is within 15 to 30 minutes per unit to maintain their therapeutic effectiveness and reduce adverse effects. Administering platelets over longer time frames can lead to decreased efficacy and potential harm to the patient. Therefore, the correct answer is to administer the 300 mL of pooled platelets within 30 minutes per unit.

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