ATI RN
ATI Pharmacology Proctored Exam 2024
1. What is the therapeutic class of Valproate?
- A. Anticoagulant
- B. Antianxiety, benzodiazepines
- C. Anticonvulsant, vascular headache suppressant
- D. Mood stabilizer
Correct answer: C
Rationale: Valproate belongs to the therapeutic class of anticonvulsants. It is primarily used to manage seizures but is also effective in treating vascular headaches. Therefore, it is not classified as an anticoagulant, antianxiety medication, or mood stabilizer. Option A, anticoagulant, is incorrect as valproate does not have anticoagulant properties. Option B, antianxiety benzodiazepines, is incorrect as valproate is not primarily used to treat anxiety disorders with benzodiazepines. Option D, mood stabilizer, is incorrect as valproate is not classified as a mood stabilizer, although it can be used in some cases for mood disorders, its primary therapeutic class is anticonvulsant.
2. A client has a new prescription for a Nitroglycerin transdermal patch. Which of the following instructions should the nurse include?
- A. Apply the patch to a different site each day.
- B. Remove the patch at bedtime each day.
- C. Apply the patch over an area with little or no hair.
- D. Keep the patch on for 24 hours at a time.
Correct answer: B
Rationale: The correct instruction for a client using a Nitroglycerin transdermal patch is to remove the patch each day, usually at bedtime, to prevent tolerance. This practice allows for a nitrate-free interval, reducing the risk of developing tolerance to the medication. Applying the patch to a different site each day (choice A) is not necessary as long as the skin is clean and rotated to avoid skin irritation. Applying the patch over an area with little or no hair (choice C) does not impact the effectiveness of the medication. Keeping the patch on for 24 hours at a time (choice D) can lead to tolerance, which is why the patch should be removed daily.
3. A preschooler weighing 44 lb is to receive Amoxicillin 20 mg/kg/day PO divided equally every 12 hr. The available amoxicillin suspension is 250 mg/5 mL. How many mL should the nurse administer per dose?
- A. 4 mL
- B. 5 mL
- C. 6 mL
- D. 3 mL
Correct answer: A
Rationale: To calculate the dosage per administration: First, convert the weight to kg (44 lb / 2.2 lb/kg = 20 kg). Then, calculate the required dosage per dose: (20 mg/kg/day x 20 kg) / 2 (for every 12 hr dosing) = 200 mg per dose. To determine the mL per dose, divide the required dosage by the concentration of the amoxicillin suspension: (200 mg / 250 mg) x 5 mL = 4 mL per dose. Therefore, the correct answer is 4 mL. Choice B (5 mL) is incorrect because the correct calculation yields 4 mL. Choices C (6 mL) and D (3 mL) are also incorrect as they do not align with the accurate calculation based on the provided information.
4. A client is prescribed Propranolol for a dysrhythmia. Which of the following actions should the nurse plan to take?
- A. Hold Propranolol if the client's apical pulse is greater than 100/min.
- B. Administer Propranolol to decrease the client's blood pressure.
- C. Assist the client with sitting up or standing after taking this medication.
- D. Monitor the client for hypokalemia due to the risk of Propranolol toxicity.
Correct answer: C
Rationale: The correct action the nurse should plan to take when administering Propranolol is to assist the client when sitting up or standing after taking the medication. Propranolol can lead to orthostatic hypotension, causing dizziness upon sudden position changes. It is essential to help the client with position changes to prevent falls or injury. Holding Propranolol if the client's apical pulse is greater than 100/min (Choice A) is incorrect because Propranolol is often used to manage dysrhythmias and slowing down the heart rate. Administering Propranolol to decrease the client's blood pressure (Choice B) is not the primary indication for using this medication. Monitoring the client for hypokalemia due to the risk of Propranolol toxicity (Choice D) is not a direct effect of Propranolol; rather, it is more related to other medications like diuretics.
5. A client has a prescription for a Nitroglycerin transdermal patch. Which of the following instructions should be included by the healthcare provider?
- A. Apply the patch to a hairless area of the body.
- B. Remove the patch every 12 hours.
- C. Massage the patch after applying it.
- D. Place the patch over a hairless area of the body.
Correct answer: D
Rationale: The correct instruction for a Nitroglycerin transdermal patch is to place it over a hairless area of the body. This is essential to ensure proper adhesion and consistent absorption of the medication. Hair can impede the patch's ability to stick to the skin and deliver the medication effectively. Therefore, choices A, B, and C are incorrect. Applying the patch to the same site every day (Choice A) may lead to skin irritation, removing the patch every 12 hours (Choice B) is not typically recommended for Nitroglycerin patches, and massaging the patch after applying it (Choice C) could alter its integrity and affect drug delivery.
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