Nursing Elites

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

• A. Brush and floss your teeth regularly.
• B. Avoid drinking grapefruit juice.
• C. Take this medication with food.
• D. Increase your intake of calcium-rich foods.

Correct answer: A

Rationale: The correct answer is to instruct the client to brush and floss their teeth regularly. Phenytoin can lead to gingival hyperplasia, making oral hygiene crucial to prevent complications. Encouraging good oral care practices helps reduce the risk of adverse effects on the gums and teeth. Avoiding grapefruit juice is not specifically related to Phenytoin. While some medications require intake with food, Phenytoin is usually taken on an empty stomach for better absorption. Increasing calcium-rich foods is not directly associated with Phenytoin therapy.

2. A healthcare provider is educating a client who has a prescription for Theophylline. Which of the following instructions should the healthcare provider include?

• A. Avoid caffeine while taking this medication.
• B. You should increase your fluid intake.
• C. Take this medication in the evening.
• D. You may experience increased appetite while on this medication.

Correct answer: A

Rationale: The correct answer is A: 'Avoid caffeine while taking this medication.' Caffeine can increase the risk of theophylline toxicity as it competes for the same metabolic pathways. Consuming caffeine while on theophylline can lead to adverse effects. Choice B is incorrect because although maintaining adequate hydration is important, it is not a specific instruction related to theophylline use. Choice C is incorrect as the timing of the medication administration should be based on the healthcare provider's recommendation and the client's individual needs. Choice D is incorrect as increased appetite is not a common side effect associated with theophylline.

3. How is lithium typically administered?

• A. Intravenously
• B. Intramuscularly
• C. Orally
• D. Sublingually

Correct answer: C

Rationale: Lithium is typically administered orally to ensure proper absorption and distribution in the body. By taking lithium orally, it allows the medication to be absorbed through the gastrointestinal tract and distributed effectively. Intravenous and intramuscular routes are not commonly used for lithium administration as they can lead to rapid, unpredictable absorption and increase the risk of toxicity. Sublingual administration is also not the typical route for lithium, as it is usually taken orally for consistent and controlled absorption.

4. How do ACE inhibitors work?

• A. Block the vasoconstrictor and aldosterone effects of angiotensin II at the receptor site
• B. Block stimulation of beta 1 and beta 2 at the receptor sites
• C. Block the conversion of angiotensin I to the vasoconstrictor angiotensin II
• D. None of the above

Correct answer: C

Rationale: ACE inhibitors work by inhibiting the conversion of angiotensin I to angiotensin II. Angiotensin II is a potent vasoconstrictor, and by blocking its production, ACE inhibitors help dilate blood vessels, reduce blood pressure, and decrease the workload of the heart. Choice A is incorrect because it describes the mechanism of action of angiotensin receptor blockers (ARBs), not ACE inhibitors. Choice B is incorrect as it describes beta-blockers, not ACE inhibitors. Choice D is incorrect as ACE inhibitors do have a specific mechanism of action.

5. A client is receiving Enoxaparin for the prevention of deep vein thrombosis. Which of the following actions should the nurse take?

• A. Massage the injection site after administration.
• B. Administer the medication intramuscularly.
• C. Administer the medication into the subcutaneous tissue.
• D. Administer the medication into the deltoid muscle.

Correct answer: C

Rationale: Enoxaparin, a medication used for preventing deep vein thrombosis, should be administered into the subcutaneous tissue, typically in the abdomen. Administering the medication intramuscularly (Choice B) or into the deltoid muscle (Choice D) is incorrect because Enoxaparin is specifically formulated for subcutaneous administration. Massaging the injection site after administration (Choice A) is contraindicated as it may lead to tissue damage and affect the absorption of the medication. Therefore, the correct action is to administer the medication into the subcutaneous tissue as directed.

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