ATI RN
ATI Pharmacology Proctored Exam 2023
1. A client has a new prescription for Prednisone. Which of the following laboratory values should be monitored by the healthcare provider?
- A. Serum potassium
- B. Serum calcium
- C. Serum sodium
- D. Serum glucose
Correct answer: D
Rationale: When a client is prescribed Prednisone, monitoring serum glucose levels is essential. Prednisone, a corticosteroid, can lead to hyperglycemia. Therefore, regular monitoring of serum glucose helps in detecting and managing any potential hyperglycemic effects of the medication. Monitoring serum potassium, calcium, or sodium is not typically required when a client is on Prednisone unless there are specific risk factors or concerns related to these electrolytes.
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 Nitroglycerin transdermal patch is to remove it each day, usually at bedtime, to prevent tolerance. Keeping the patch on for 24 hours at a time can lead to tolerance development. Applying the patch to a different site each day is not necessary, as long as the area is rotated to prevent skin irritation. Applying the patch over an area with little or no hair is not a critical instruction for the Nitroglycerin patch.
3. What is the pharmacological action of metformin?
- A. Blocks stimulation of beta1 and beta2.
- B. Blocks vasoconstriction and aldosterone.
- C. Acts at many levels in the CNS to produce an anxiolytic effect.
- D. Decreases hepatic glucose production.
Correct answer: D
Rationale: The correct answer is D: Decreases hepatic glucose production. Metformin's primary pharmacological action is to decrease hepatic glucose production, leading to lower blood sugar levels and improved insulin sensitivity in the liver. Choices A, B, and C are incorrect because metformin does not block stimulation of beta1 and beta2 receptors, vasoconstriction, aldosterone, or act in the CNS to produce an anxiolytic effect. Therefore, these options are not reflective of metformin's mechanism of action.
4. 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.
5. A nurse is providing teaching to a client who has a new prescription for Metoprolol. Which of the following statements should the nurse include?
- A. This medication may make you feel dizzy at first.
- B. You should avoid foods that are high in fat.
- C. Take the medication in the morning.
- D. You may experience a rapid heart rate while taking this medication.
Correct answer: A
Rationale: Metoprolol, a beta-blocker, can cause dizziness, especially when starting the medication. The nurse should inform the client to change positions slowly to avoid dizziness and falls.
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