Nursing Elites

1. What is the classification of furosemide?

• A. Loop diuretic
• B. Anticoagulant
• C. Iron supplement
• D. Anticonvulsant

Correct answer: A

Rationale: Furosemide is classified as a loop diuretic, not an anticoagulant, iron supplement, or anticonvulsant. Loop diuretics, like furosemide, act in the loop of Henle in the kidney to inhibit sodium and chloride reabsorption, leading to increased urine output. This mechanism makes them effective in treating conditions such as edema and hypertension. Therefore, the correct classification for furosemide is a loop diuretic (Choice A).

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

• A. Take this medication at bedtime.
• B. Avoid sudden discontinuation of the medication.
• C. Increase your intake of sodium-rich foods.
• D. Avoid drinking grapefruit juice.

Correct answer: B

Rationale: The correct instruction for a client on Labetalol is to avoid sudden discontinuation of the medication. Labetalol is a beta-blocker that, if abruptly stopped, can lead to rebound hypertension and other cardiac issues. It is essential for patients to taper off this medication under medical supervision to prevent adverse effects.

3. What is the therapeutic use of metformin?

• A. Lower blood pressure
• B. Diminish seizure activity
• C. The maintenance of a person's blood glucose levels
• D. Increase heart rate and decrease gastrointestinal secretions

Correct answer: C

Rationale: Metformin is commonly prescribed to manage and control blood glucose levels in individuals with diabetes. It helps in reducing the amount of glucose produced by the liver and improves the body's response to insulin, thereby aiding in the regulation of blood sugar levels. It is not used to lower blood pressure, diminish seizure activity, increase heart rate, or decrease gastrointestinal secretions.

4. A client has a prescription for Prednisone for the treatment of Rheumatoid Arthritis. Which of the following statements by the client indicates an understanding of the teaching?

• A. I will increase my intake of potassium-rich foods.
• B. I should take my medication with food.
• C. I will decrease my intake of calcium-rich foods.
• D. I should avoid eating grapefruit while taking this medication.

Correct answer: A

Rationale: The correct answer is A. Prednisone can cause hypokalemia, leading to low potassium levels. Increasing the intake of potassium-rich foods helps prevent this imbalance. Choices B, C, and D are incorrect because taking Prednisone with food, decreasing calcium-rich foods, or avoiding grapefruit are not specifically related to addressing the side effect of hypokalemia associated with Prednisone.

5. Which drug undergoes extensive first-pass hepatic metabolism?

• A. Heparin
• B. Insulin
• C. Propranolol
• D. Nitroglycerin

Correct answer: C

Rationale: Propranolol undergoes extensive first-pass hepatic metabolism in the liver. When administered orally, propranolol is extensively metabolized by the liver before reaching systemic circulation, leading to reduced bioavailability. This process is known as first-pass hepatic metabolism, which significantly affects the drug's effectiveness and necessitates higher oral doses compared to other routes of administration. Heparin (Choice A) is not metabolized by the liver but excreted unchanged by the kidneys. Insulin (Choice B) is a peptide hormone that is not subject to significant first-pass metabolism. Nitroglycerin (Choice D) is primarily metabolized in the blood and tissues, bypassing significant first-pass metabolism in the liver.

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