Nursing Elites

1. A patient is prescribed warfarin therapy for an artificial heart valve. Which of the following laboratory values should the nurse monitor for a therapeutic effect of warfarin?

• A. Hemoglobin
• B. Prothrombin time (PT)
• C. Bleeding time
• D. Activated partial thromboplastin time (aPTT)

Correct answer: B

Rationale: The correct answer is to monitor Prothrombin time (PT) when a patient is on warfarin therapy. Warfarin affects blood clotting, and PT is used to assess the therapeutic effect of this medication. Hemoglobin (Choice A) is not directly affected by warfarin therapy and does not reflect its therapeutic effect. Bleeding time (Choice C) measures the time it takes for bleeding to stop after a standardized cut and is not specific to warfarin therapy. Activated partial thromboplastin time (aPTT) (Choice D) is more commonly used to monitor heparin therapy, not warfarin.

2. Which of the following is classified as a class IA Sodium Channel blocker?

• A. Quinidine
• B. Disopyramide
• C. Aminodarone
• D. Propafenone

Correct answer: A

Rationale: Quinidine is classified as a class IA sodium channel blocker. Class IA antiarrhythmics, like quinidine, work by blocking sodium channels and delaying repolarization. Propafenone, mentioned in the original rationale, is actually a class IC antiarrhythmic agent, not a class IA sodium channel blocker.

3. A client is taking Furosemide for heart failure. Which of the following laboratory tests should the nurse monitor to assess for an adverse effect of this medication?

• A. Serum potassium.
• B. Serum calcium.
• C. Serum sodium.
• D. Serum magnesium.

Correct answer: A

Rationale: Furosemide, a loop diuretic commonly used in heart failure, can cause hypokalemia (low potassium levels) as a side effect. Monitoring serum potassium levels is crucial to detect and prevent complications associated with low potassium levels, such as cardiac arrhythmias. Therefore, the nurse should prioritize assessing the client's serum potassium levels regularly while on Furosemide. Serum calcium, sodium, and magnesium levels are not typically affected by Furosemide and are not the primary focus of monitoring for adverse effects of this medication.

4. A healthcare professional is preparing to administer Spironolactone to a client. Which of the following laboratory results should the professional review before administering this medication?

• A. Serum potassium.
• B. Serum sodium.
• C. Serum chloride.
• D. Serum calcium.

Correct answer: A

Rationale: When administering Spironolactone, it is essential to monitor the client's serum potassium levels because Spironolactone is a potassium-sparing diuretic. Monitoring potassium levels helps to detect hyperkalemia, a potential adverse effect of the medication.

5. A client with active tuberculosis asks why he must take four different medications. Which of the following responses should the nurse make?

• A. Four medications decrease the risk of a severe allergic reaction.
• B. Four medications reduce the chance that the bacteria will become resistant.
• C. Four medications reduce the risk of adverse reactions.
• D. Four medications decrease the chance of having a positive tuberculin skin test.

Correct answer: B

Rationale: The correct answer is B. When treating tuberculosis, using a combination of medications is crucial to reduce the risk of bacteria developing resistance to any single drug. This approach helps prevent treatment failure and ensures successful treatment outcomes. Choice A is incorrect because the primary purpose of using multiple medications is not related to allergic reactions. Choice C is incorrect as the risk reduction is mainly focused on bacterial resistance rather than adverse reactions. Choice D is not relevant as the purpose of taking multiple medications is not to affect the tuberculin skin test results.

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