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. 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.

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

• A. Take this medication with meals.
• B. Avoid taking this medication with dairy products.
• C. Take this medication at bedtime.
• D. Increase your intake of potassium-rich foods.

Correct answer: B

Rationale: The correct answer is B: 'Avoid taking this medication with dairy products.' Ciprofloxacin should not be taken with dairy products because calcium can interfere with the absorption of the medication. Instructing the client to take it 1 hour before or 2 hours after consuming dairy products will ensure optimal effectiveness of the medication. Choice A is incorrect because Ciprofloxacin is usually recommended to be taken on an empty stomach or with a full glass of water. Choice C is incorrect as there is no specific requirement to take Ciprofloxacin at bedtime. Choice D is also incorrect as there is no need to increase intake of potassium-rich foods in relation to taking Ciprofloxacin.

4. What is the correct definition of drug absorption?

• A. Movement of a drug from the site of administration to various tissues of the body
• B. Describes the absorption, distribution, metabolism, and excretion of drugs
• C. These types of drugs can be taken over the counter
• D. This addresses how various drugs affect different forms of the body

Correct answer: A

Rationale: The correct definition of drug absorption is the movement of a drug from the site of administration into various tissues of the body. It is the process by which a drug is taken up and enters the systemic circulation. Choice B describes the pharmacokinetics of drugs, including absorption, distribution, metabolism, and excretion, but it is not a specific definition of drug absorption. Choice C is unrelated to drug absorption, as it refers to over-the-counter drugs. Choice D is too vague and does not specifically address the process of drug absorption.

5. A nurse in a clinic is caring for a group of clients. The nurse should contact the provider about a potential contraindication to a medication for which of the following clients? (Select all that apply.)

• A. A client at 8 weeks of gestation who asks for an Influenza immunization
• B. A client who takes Prednisone and has a possible Fungal infection
• C. A client who has chronic liver disease and is taking Hydrocodone
• D. A client who has Peptic Ulcer Disease, takes Sucralfate, and tells the nurse she has started taking OTC Aluminum Hydroxide

Correct answer: B

Rationale: Prednisone, a glucocorticoid, should not be taken by a client who has a possible systemic fungal infection as it can worsen the infection. This combination can suppress the immune response, allowing the fungal infection to proliferate. Therefore, the nurse should contact the provider regarding this potential contraindication to medication. The other options do not present a contraindication related to the medication interactions described in the question.

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