Nursing Elites

1. Which of the following diuretics inhibits sodium reabsorption in the kidneys while sparing K+ and hydrogen ions?

• A. Spironolactone
• B. Furosemide
• C. Hydrochlorothiazide
• D. Bumetanide

Correct answer: A

Rationale: Spironolactone is the correct answer as it is classified as a potassium-sparing diuretic. It works by inhibiting sodium reabsorption in the kidneys while promoting the retention of potassium and hydrogen ions. This mechanism of action helps in reducing fluid retention without causing excessive loss of potassium, which is a common side effect of other diuretics. Furosemide (choice B), Hydrochlorothiazide (choice C), and Bumetanide (choice D) are not correct as they are not potassium-sparing diuretics. Furosemide and Bumetanide are loop diuretics that inhibit sodium, potassium, and chloride reabsorption in the loop of Henle. Hydrochlorothiazide is a thiazide diuretic that inhibits sodium and chloride reabsorption in the distal convoluted tubule, leading to potassium loss.

2. A client has a new prescription for Nitrofurantoin. Which of the following instructions should the nurse include?

• A. Take this medication with food.
• B. Avoid dairy products while taking this medication.
• C. Take this medication at bedtime.
• D. Increase your intake of vitamins.

Correct answer: A

Rationale: The correct instruction for a client prescribed Nitrofurantoin is to take the medication with food. Taking Nitrofurantoin with food helps enhance absorption and reduces the risk of gastrointestinal side effects. It is important for the nurse to emphasize this instruction to ensure the client benefits optimally from the medication. Choices B, C, and D are incorrect. Avoiding dairy products is not specifically required with Nitrofurantoin. Taking the medication at bedtime is not a standard instruction. Increasing vitamin intake is not necessary in relation to Nitrofurantoin therapy.

3. Which drug class has been found to decrease mortality if given within 8 hours of an MI due to a decrease in cardiac workload?

• A. Antiplatelets
• B. Beta-adrenergic blockers
• C. ACE inhibitors
• D. Calcium channel blockers

Correct answer: B

Rationale: Beta-adrenergic blockers have been shown to decrease mortality when administered within 8 hours of a myocardial infarction (MI). They do so by reducing cardiac workload, which helps improve outcomes post-MI. These drugs work by blocking the effects of adrenaline on the heart, leading to decreased heart rate, blood pressure, and myocardial oxygen demand, thereby protecting the heart muscle from further damage. This makes them a crucial part of the treatment regimen for acute coronary syndromes like MI.

4. A healthcare professional is reviewing the laboratory results of a client taking Warfarin for atrial fibrillation. Which of the following findings should the professional report to the provider immediately?

• A. INR of 4.0
• B. Potassium level of 4.5 mEq/L
• C. Creatinine level of 1.0 mg/dL
• D. BUN of 18 mg/dL

Correct answer: A

Rationale: An INR of 4.0 indicates that the client's blood is clotting too slowly, increasing the risk of bleeding. This level is above the therapeutic range for a client on Warfarin therapy. Therefore, the healthcare professional should notify the provider immediately to prevent potential bleeding complications. The other laboratory values are within normal limits and do not pose an immediate risk to the client's health while on Warfarin therapy.

5. A client is receiving combination chemotherapy. Which of the following findings should the nurse identify as an indication of an oncologic emergency?

• A. Dry oral mucous membranes
• B. Nausea and vomiting
• C. Temperature of 38.1°C (100.6°F)
• D. Anorexia

Correct answer: C

Rationale: A temperature of 38.1°C (100.6°F) can indicate an infection, which is considered an oncologic emergency in clients receiving chemotherapy due to the increased risk of sepsis in immunocompromised individuals. Dry oral mucous membranes (Choice A), nausea and vomiting (Choice B), and anorexia (Choice D) are common side effects of chemotherapy but do not typically indicate an oncologic emergency requiring immediate intervention.

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