ATI RN
ATI Proctored Pharmacology Test
1. A client has an infection and a prescription for gentamicin intermittent IV bolus every 8 hr. A peak and trough is required with the next dose. Which of the following actions should be taken to obtain an accurate gentamicin serum level?
- A. Draw a trough level immediately prior to administering the medication and a peak level 30 min after the dose.
- B. Draw a peak level 90 min prior to administering the medication and a trough level 90 min after the dose.
- C. Draw a trough level immediately prior to administering the medication and a peak level 30 min after the dose.
- D. Draw a peak level at 0900 and a trough level at 2100.
Correct answer: C
Rationale: To obtain an accurate gentamicin serum level, the trough should be drawn immediately before administering the medication, and the peak level should be drawn 30 minutes after the dose. This timing allows for the assessment of the lowest and highest drug concentrations in the bloodstream, ensuring therapeutic levels are achieved while minimizing the risk of toxicity. Choice A is correct as it follows this timing protocol. Choices B and D have incorrect timing for peak and trough levels, which would not provide an accurate representation of the drug's concentration in the bloodstream.
2. A client has a new prescription for nitroglycerin transdermal patches. Which of the following instructions should the nurse include?
- A. Apply the patch to a different location each day.
- B. Remove the patch every night before bedtime.
- C. Massage the patch area gently after application.
- D. Shave the area before applying the patch.
Correct answer: B
Rationale: The correct instruction for a client using nitroglycerin transdermal patches is to remove the patch every night before bedtime. This practice helps prevent tolerance to the medication's effects. Continuous exposure to nitroglycerin can result in the body becoming less responsive to its therapeutic effects over time, reducing its efficacy in managing the prescribed condition. Choices A, C, and D are incorrect. Applying the patch to a different location each day does not address the issue of tolerance. Massaging the patch area gently after application is not recommended as it may alter drug absorption. Shaving the area before applying the patch is unnecessary and may increase the risk of skin irritation.
3. A client has a new prescription for Iron supplements. Which of the following instructions should be included in the teaching?
- A. Take the medication with a glass of orange juice.
- B. Avoid taking the medication with milk.
- C. Increase fiber intake to prevent constipation.
- D. Expect stools to be dark.
Correct answer: C
Rationale: The correct answer is to increase fiber intake to prevent constipation when taking iron supplements. Iron supplements can lead to constipation as a common side effect. Increasing fiber intake helps promote healthy bowel movements and counteracts the constipating effects of iron. Choice A is incorrect because iron absorption is hindered by calcium found in milk. Choice B is incorrect as orange juice enhances iron absorption due to its vitamin C content. Choice D is incorrect as iron supplements can cause stools to appear dark, not bright red.
4. When should Montelukast be taken?
- A. At least two hours before exercise
- B. Daily in the evening
- C. Two hours before exercise or daily in the evening
- D. None of the above
Correct answer: B
Rationale: Montelukast should be taken daily in the evening to effectively manage asthma symptoms. Taking it at the same time each day helps maintain a consistent level of the medication in the body, providing optimal control over asthma symptoms and inflammation. Choice A is incorrect because Montelukast should not be taken specifically before exercise, but rather daily. Choice C is incorrect because although taking Montelukast two hours before exercise is not necessary, taking it daily in the evening is essential for its effectiveness. Choice D is incorrect as Montelukast should be taken daily to manage asthma.
5. What is the expected outcome of Valproate therapy?
- A. Decreased fever
- B. Decreased sense of anxiety
- C. Decreased blood pressure
- D. Decreased seizure activity
Correct answer: D
Rationale: The correct answer is D: Decreased seizure activity. Valproate is commonly used in the treatment of epilepsy to help control and reduce seizure frequency. Choices A, B, and C are incorrect because Valproate is not primarily used to treat fever, anxiety, or blood pressure issues.
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