Nursing Elites

1. A client has a new prescription for Warfarin. Which of the following herbal supplements should the client be instructed to avoid?

• A. St. John's wort
• B. Echinacea
• C. Garlic
• D. Ginseng

Correct answer: A

Rationale: St. John's wort should be avoided by clients taking Warfarin as it can reduce the medication's effectiveness by affecting its metabolism. Echinacea, garlic, and ginseng are also known to interact with Warfarin, either by increasing the risk of bleeding or altering its anticoagulant effects. However, St. John's wort is particularly significant due to its potent enzyme-inducing properties that can lead to subtherapeutic levels of Warfarin, potentially increasing the risk of blood clots.

2. A client has a new prescription for Nifedipine. Which of the following adverse effects should the nurse monitor?

• A. Hypertension
• B. Edema
• C. Hyperglycemia
• D. Bradycardia

Correct answer: B

Rationale: The correct answer is B: Edema. Nifedipine, a calcium channel blocker, can lead to peripheral edema as an adverse effect. The nurse should closely observe the client's lower extremities for any signs of swelling, which could indicate the development of edema. Choice A, Hypertension, is incorrect because Nifedipine is used to treat hypertension, not cause it. Choice C, Hyperglycemia, is unrelated to Nifedipine's common adverse effects. Choice D, Bradycardia, is not typically associated with Nifedipine use.

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

• A. Take this medication at bedtime.
• B. Monitor for signs of hyperglycemia.
• C. Avoid drinking grapefruit juice.
• D. Increase your intake of potassium-rich foods.

Correct answer: C

Rationale: The correct instruction for a client prescribed Verapamil is to avoid drinking grapefruit juice. Grapefruit juice can inhibit the metabolism of Verapamil, leading to increased blood levels of the medication. This can result in a higher risk of adverse effects, such as hypotension and bradycardia. Therefore, it is essential for the client to avoid grapefruit juice while taking Verapamil to prevent potential complications. Choices A, B, and D are incorrect because taking Verapamil at bedtime, monitoring for signs of hyperglycemia, and increasing potassium-rich foods intake are not specific instructions related to Verapamil therapy and do not address the potential interaction with grapefruit juice.

4. A healthcare provider is caring for a group of individuals who are not immune to Varicella. The healthcare provider should prepare to administer the Varicella vaccine at this time to which of the following individuals?

• A. 24-year-old woman in the third trimester of pregnancy
• B. 12-year-old child who has a severe allergy to neomycin
• C. 2-month-old infant who has no health problems
• D. 32-year-old man who has essential hypertension

Correct answer: D

Rationale: The correct answer is the 32-year-old man with essential hypertension. Individuals not immune to Varicella should receive the vaccine if they did not get two doses earlier. Essential hypertension is not a contraindication for the Varicella vaccine. Administering the vaccine to pregnant women, individuals with severe neomycin allergies, or infants is contraindicated. Pregnant women should not receive the Varicella vaccine due to the potential risk to the fetus. Severe neomycin allergies are a contraindication because neomycin is present in the vaccine. Infants under 12 months of age are generally not vaccinated against Varicella unless there are specific circumstances or recommendations.

5. To which pharmacologic classification does the drug propranolol belong?

• A. Beta Blockers
• B. Cholinergics
• C. Immune globulins
• D. Barbiturates

Correct answer: A

Rationale: Propranolol belongs to the pharmacologic classification of Beta Blockers. Beta blockers work by blocking the action of adrenaline and other stress hormones on beta-adrenergic receptors. They are commonly used to manage conditions like high blood pressure, angina, and arrhythmias. Choice B, Cholinergics, is incorrect because cholinergics work by stimulating the parasympathetic nervous system, unlike beta blockers that block adrenergic receptors. Choice C, Immune globulins, is incorrect as it refers to antibodies used to boost the immune system, not the mechanism of action of propranolol. Choice D, Barbiturates, is incorrect as barbiturates are a different class of drugs that act as central nervous system depressants, primarily used as sedatives and anesthetics.

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