Nursing Elites

1. What is pharmacodynamics?

• A. The medical reference summarizing standards of drug purity, strength, and directions for synthesis
• B. The drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions
• C. The maximum response that a drug can produce
• D. Movements of the drugs throughout the body

Correct answer: B

Rationale: Pharmacodynamics refers to the drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions. It involves understanding how drugs interact with the body at the molecular level to produce their effects, including mechanisms of action, receptor binding, and downstream physiological responses. Choice A is incorrect because it describes pharmacopeia, which is a reference book containing standards for drugs. Choice C refers to efficacy, which is the maximum effect a drug can produce. Choice D describes pharmacokinetics, which focuses on the movement of drugs within the body.

2. When does regular insulin typically peak?

• A. 30 minutes to 2 ½ hours
• B. 1 to 3 hours
• C. 6 to 14 hours
• D. 1 to 5 hours

Correct answer: D

Rationale: Regular insulin usually peaks around 1 to 5 hours after administration. This peak time frame is important to consider when managing blood glucose levels and timing meals to coincide with insulin activity. Choice A, '30 minutes to 2 ½ hours,' is incorrect because regular insulin typically peaks later. Choice B, '1 to 3 hours,' is not the most accurate as the peak for regular insulin can extend beyond 3 hours. Choice C, '6 to 14 hours,' is incorrect as this timeframe is more indicative of long-acting insulins, not regular insulin.

3. A healthcare professional is preparing to administer Filgrastim for the first time to a client who has just undergone a bone marrow transplant. Which of the following interventions is appropriate?

• A. Administer subcutaneously in a large muscle mass to prevent injury.
• B. Ensure that the medication is kept at room temperature until just prior to administration.
• C. Invert vial gently to mix well before withdrawing dose.
• D. Discard vial after removing one dose of the medication.

Correct answer: D

Rationale: The correct intervention when preparing to administer Filgrastim is to discard the vial after removing one dose of the medication. This practice helps prevent contamination and ensures the medication's effectiveness. Reusing the vial can lead to contamination and compromise the sterility of the medication, putting the client at risk. Therefore, it is crucial to follow proper aseptic technique and discard the vial after withdrawing the prescribed dose.

4. A healthcare professional is obtaining a medication history from a client who is to receive Imipenem-cilastatin IV to treat an infection. Which of the following medications the client also receives puts them at risk for a medication interaction?

• A. Regular insulin
• B. Furosemide
• C. Valproic acid
• D. Ferrous sulfate

Correct answer: C

Rationale: The correct answer is C, Valproic acid. Imipenem-cilastatin decreases the blood levels of valproic acid, an antiseizure medication, which can lead to increased seizure activity. Monitoring and adjusting the dosage of valproic acid may be necessary when co-administered with Imipenem-cilastatin to prevent adverse effects. Choices A, B, and D do not typically interact significantly with Imipenem-cilastatin and are not associated with a high risk of adverse interactions in this scenario.

5. A client is starting a new prescription for ferrous sulfate. Which of the following instructions should the nurse include?

• A. Take the medication with meals.
• B. Take the medication on an empty stomach.
• C. Take the medication with orange juice to enhance absorption.
• D. Take the medication with a full glass of milk.

Correct answer: C

Rationale: The correct answer is C: 'Take the medication with orange juice to enhance absorption.' Taking ferrous sulfate with orange juice helps enhance the absorption of iron due to the ascorbic acid present in the orange juice, which aids in iron absorption. This combination can help improve the effectiveness of the medication. Choice A, taking the medication with meals, may reduce gastrointestinal side effects but does not specifically enhance absorption. Choice B, taking the medication on an empty stomach, may lead to better absorption but can also increase the risk of gastrointestinal side effects. Choice D, taking the medication with a full glass of milk, is incorrect because calcium in milk can inhibit the absorption of iron.

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