which of the following is considered a class ia sodium channel blocker
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Nursing Elites

ATI RN

ATI Pharmacology Proctored

1. Which of the following is considered a class IA Sodium Channel blocker?

Correct answer: D

Rationale: Procainamide is a class IA antiarrhythmic drug that acts as a sodium channel blocker by blocking fast sodium channels. Mexiletine is a class IB antiarrhythmic drug, not class IA. Amiodarone is a class III antiarrhythmic, and Quinidine is a class IA antiarrhythmic but not a sodium channel blocker.

2. A client has a new prescription for Nitroglycerin sublingual tablets. Which of the following instructions should the nurse include in the discharge teaching?

Correct answer: B

Rationale: The correct instruction for Nitroglycerin sublingual tablets is to take one tablet at the onset of chest pain, then repeat every 5 minutes for up to three doses. This regimen helps in relieving angina symptoms effectively. Option A of taking one tablet every 15 minutes is too infrequent and may delay symptom relief. Option C of taking one tablet at bedtime is not appropriate as Nitroglycerin is used for immediate relief of angina. Option D of taking one tablet on an empty stomach is irrelevant since Nitroglycerin is not affected by food intake.

3. A client has a new prescription for Furosemide. Which of the following dietary instructions should the nurse provide?

Correct answer: A

Rationale: The correct answer is A: 'Increase your intake of bananas and oranges.' Furosemide, a loop diuretic, can cause potassium loss leading to hypokalemia. To prevent this, clients should increase their intake of potassium-rich foods, such as bananas and oranges, to replenish potassium levels. Choices B, C, and D are incorrect because limiting calcium-rich foods or avoiding milk is not necessary with Furosemide, and increasing intake of green, leafy vegetables does not specifically address the potential potassium loss associated with this medication.

4. When administering Amitriptyline to a client experiencing cancer pain, for which of the following adverse effects should the nurse monitor?

Correct answer: D

Rationale: Corrected Question: When administering Amitriptyline to a client experiencing cancer pain, for which of the following adverse effects should the nurse monitor? Amitriptyline is known to cause orthostatic hypotension, a sudden drop in blood pressure when moving from lying down or sitting to a standing position. Monitoring for orthostatic hypotension is crucial to prevent falls and related injuries. Educating the client about moving slowly and changing positions gradually can help mitigate this adverse effect. Choices A, B, and C are incorrect because decreased appetite, explosive diarrhea, and decreased pulse rate are not commonly associated with Amitriptyline use. Therefore, the correct answer is D.

5. When starting Alfuzosin for the treatment of Benign Prostatic Hyperplasia, a nurse is providing teaching to a client. The nurse should instruct the client that which of the following is an adverse effect of this medication?

Correct answer: C

Rationale: The correct adverse effect of Alfuzosin is hypotension. Alfuzosin relaxes muscle tone in veins, leading to decreased cardiac output and subsequent hypotension. Patients on this medication should be advised to change positions slowly to prevent a sudden drop in blood pressure. Choice A, Bradycardia, is not a common adverse effect of Alfuzosin. Choice B, Edema, is not typically associated with Alfuzosin use. Choice D, Tremor, is also not a common adverse effect of Alfuzosin.

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