Nursing Elites

1. Which of the following drugs has a therapeutic effect that increases cardiac output and slows heart rate?

• A. Heparin
• B. Alprazolam
• C. Digoxin
• D. Levothyroxine

Correct answer: C

Rationale: Digoxin is the correct answer. It is a medication known for its positive inotropic effects, which increase cardiac output, and negative chronotropic effects, which slow the heart rate. These effects are achieved by inhibiting the sodium-potassium ATPase pump in myocardial cells. Therefore, Digoxin is commonly prescribed to manage conditions like heart failure and atrial fibrillation, where enhancing cardiac output and reducing heart rate are beneficial. Choices A, B, and D are incorrect because Heparin is an anticoagulant, Alprazolam is a benzodiazepine used for anxiety disorders, and Levothyroxine is a thyroid hormone replacement drug, none of which have the specified therapeutic effects on cardiac function.

2. Which of the following is not directly related to the drug toxicity of Ibuprofen?

• A. Nausea
• B. Renal dysfunction
• C. Anemia
• D. Muscle wasting

Correct answer: D

Rationale: Ibuprofen is known to cause adverse effects such as nausea, renal dysfunction, and anemia. However, muscle wasting is not a common toxicity associated with Ibuprofen use. Therefore, the correct answer is D.

3. When administering medications to a 4-month-old infant, which of the following pharmacokinetic principles should be considered? (Select all that apply.)

• A. Infants have a more rapid gastric emptying time.
• B. Infants have immature liver function.
• C. Infants' blood-brain barrier is poorly developed.
• D. Infants have an increased ability to absorb topical medications.

Correct answer: B

Rationale: When administering medications to a 4-month-old infant, the pharmacokinetic principle to consider is that infants have immature liver function until 1 year of age. This requires medications metabolized by the liver to be administered in smaller dosages. While infants do have a more rapid gastric emptying time, immature liver function is a more critical pharmacokinetic consideration in this context. Additionally, although infants have a poorly developed blood-brain barrier, this relates more to pharmacodynamic effects rather than pharmacokinetic principles. The statement about infants having an increased ability to absorb topical medications is not directly related to pharmacokinetic principles, making choice B the correct answer.

4. A client starting highly active antiretroviral therapy (HAART) for HIV infection is being educated by a nurse on preventing medication resistance. What information should the nurse provide the client about resistance?

• A. Taking low dosages of antiretroviral medication minimizes resistance.
• B. Taking one antiretroviral medication at a time minimizes resistance.
• C. Taking medication at the same time daily without missing doses minimizes resistance.
• D. Changing the medication regimen when adverse effects occur minimizes resistance.

Correct answer: C

Rationale: To prevent the development of medication resistance, it is crucial for the client to take antiretroviral medication consistently at the same time daily without missing doses. This practice helps maintain effective drug levels in the body, reducing the risk of resistance development.

5. A client who is withdrawing from alcohol has been prescribed Propranolol. Which information should the nurse include in the teaching?

• A. Increases the risk for seizure activity.
• B. Provides a form of aversion therapy.
• C. Decreases cravings.
• D. Results in mild hypertension.

Correct answer: C

Rationale: The correct information the nurse should include in the teaching is that Propranolol decreases cravings for alcohol. Propranolol is used as an adjunct medication during alcohol withdrawal to help reduce the desire for alcohol. Choice A is incorrect as Propranolol does not increase the risk for seizure activity; it can actually be used to prevent alcohol withdrawal seizures. Choice B is also incorrect as Propranolol does not provide aversion therapy. Choice D is incorrect as Propranolol is not known to result in mild hypertension.

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