Nursing Elites

1. What does it mean when a medication has a half-life?

• A. It only lasts for 30 minutes after the medication is given
• B. How long it takes for half of the dose to be eliminated from the bloodstream
• C. It is the peak of how effective the medicine is
• D. Drug is greatly reduced before it reaches the systemic circulation

Correct answer: B

Rationale: When a medication has a half-life, it refers to the time it takes for half of the dose to be eliminated from the bloodstream. This parameter is crucial in understanding the duration of action and dosing intervals for medications in clinical practice. Choice A is incorrect as the half-life is not about how long the medication lasts but about elimination from the body. Choice C is incorrect because the half-life is not about the peak effectiveness of the medicine. Choice D is incorrect as it does not accurately define the concept of half-life.

2. A client who received Prochlorperazine 4 hours ago reports spasms of his face. The nurse should anticipate a prescription for which of the following medications?

• A. Fomepizole
• B. Naloxone
• C. Phytonadione
• D. Diphenhydramine

Correct answer: D

Rationale: An adverse effect of prochlorperazine is acute dystonia, which is evidenced by spasms of the muscles in the face, neck, and tongue. Diphenhydramine is used to suppress extrapyramidal effects of prochlorperazine, making it the most appropriate choice to address the client's spasms. Fomepizole is used in methanol or ethylene glycol poisoning, not for acute dystonia. Naloxone is an opioid antagonist used for opioid overdose, not for acute dystonia. Phytonadione is vitamin K, used for the reversal of warfarin, not for acute dystonia.

3. When teaching a client with a new prescription for nitroglycerin patches, which of the following instructions should the nurse include?

• A. Apply the patch at the same time every day.
• B. Rotate the application site daily.
• C. Remove the patch for 12 hours each day.
• D. Cut the patch in half if needed.

Correct answer: B

Rationale: The correct instruction for a client with a new prescription for nitroglycerin patches is to rotate the application site daily. This is important to prevent skin irritation and ensure optimal absorption of the medication. Applying the patch at the same time every day (Choice A) is not necessary for nitroglycerin patches. Removing the patch for 12 hours each day (Choice C) would disrupt the continuous delivery of medication. Cutting the patch in half (Choice D) can alter the dose and is not recommended unless directed by a healthcare provider.

4. A client receives a new prescription for NRTIs for HIV treatment. Which statement should the nurse include during teaching about these medications?

• A. These medications work by inhibiting enzymes to prevent HIV replication.
• B. These medications work by preventing protein synthesis within the HIV cell.
• C. These medications work by weakening the cell wall of the HIV virus.
• D. These medications work by blocking HIV entry into cells.

Correct answer: A

Rationale: NRTIs inhibit the enzyme reverse transcriptase, essential for HIV replication. By preventing this process, viral replication is hindered, ultimately reducing the viral load in the body. Option A correctly explains the mechanism of action of NRTIs in treating HIV infection. Choices B, C, and D describe mechanisms of action that do not align with how NRTIs work in HIV treatment. B is incorrect because NRTIs do not target protein synthesis within the HIV cell. C is incorrect as NRTIs do not affect the cell wall of the HIV virus. D is incorrect because NRTIs do not block HIV entry into cells.

5. While assessing a client taking Amiodarone to treat Atrial Fibrillation, which of the following findings is indicative of Amiodarone toxicity?

• A. Light yellow urine
• B. Report of tinnitus
• C. Productive cough
• D. Blue-gray skin discoloration

Correct answer: C

Rationale: Productive cough can indicate pulmonary toxicity, which is a known adverse effect of Amiodarone. Clients on Amiodarone should be monitored for signs of pulmonary toxicity such as cough, dyspnea, and chest pain. This is important to detect early and prevent serious complications. The other options are not typically associated with Amiodarone toxicity. Light yellow urine is not a common sign, tinnitus is more related to ear problems, and blue-gray skin discoloration is not a recognized symptom of Amiodarone toxicity.

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