ATI RN
ATI Pharmacology Proctored Exam 2019
1. A client is prescribed Diltiazem. Which of the following findings should the nurse monitor?
- A. Tachycardia
- B. Bradycardia
- C. Hypertension
- D. Hyperkalemia
Correct answer: B
Rationale: Diltiazem is a calcium channel blocker that can lead to bradycardia as an adverse effect due to its negative chronotropic and dromotropic effects on the heart. The nurse should monitor the client's heart rate regularly to detect any signs of bradycardia and take appropriate actions if necessary. Tachycardia (Choice A) is not an expected finding with Diltiazem use. Hypertension (Choice C) is actually a condition that Diltiazem is used to treat. Hyperkalemia (Choice D) is not a common adverse effect of Diltiazem.
2. A client has a prescription for Levothyroxine. Which of the following instructions should the nurse include?
- A. Take this medication on an empty stomach.
- B. Take this medication with food.
- C. Take this medication at bedtime.
- D. Take this medication with antacids.
Correct answer: A
Rationale: Levothyroxine should be taken on an empty stomach to increase absorption and efficacy. Taking it with food or antacids can interfere with its absorption, leading to reduced effectiveness of the medication.
3. A client has a new prescription for Ferrous sulfate. Which of the following instructions should be included?
- A. Take this medication with milk.
- B. Take this medication on an empty stomach.
- C. Take this medication before bedtime.
- D. Take this medication with antacids.
Correct answer: B
Rationale: The correct answer is B: 'Take this medication on an empty stomach.' Ferrous sulfate is best absorbed on an empty stomach. Instruct the client to take it 1 hour before or 2 hours after meals to maximize absorption and avoid interactions with food or beverages that may decrease absorption. Choice A is incorrect because taking Ferrous sulfate with milk can decrease its absorption. Choice C is incorrect as there is no specific benefit to taking it before bedtime. Choice D is incorrect as antacids can interfere with the absorption of Ferrous sulfate.
4. A healthcare professional reviewing a client's medical record notes a new prescription for verifying the trough level of the client's medication. Which of the following actions should the professional take?
- A. Obtain a blood specimen immediately prior to administering the next dose of medication.
- B. Verify that the client has been taking the medication for 24 hours before obtaining a blood specimen.
- C. Ask the client to provide a urine specimen after the next dose of medication.
- D. Administer the medication, and obtain a blood specimen 30 minutes later.
Correct answer: A
Rationale: To verify trough levels of a medication, the healthcare professional should obtain a blood specimen immediately before administering the next dose of medication. This timing ensures an accurate representation of the medication's lowest concentration in the bloodstream, which is crucial for therapeutic monitoring and dose adjustments. Choice B is incorrect because waiting 24 hours after taking the medication would not provide an accurate trough level. Choice C is incorrect as urine specimens are not used to measure trough levels. Choice D is incorrect because obtaining a blood specimen 30 minutes after administering the medication would not reflect the trough level, as it is the lowest concentration before the next dose.
5. A client is receiving heparin therapy. Which laboratory value should be monitored by the nurse to evaluate the effectiveness of the therapy?
- A. PT
- B. aPTT
- C. INR
- D. Platelet count
Correct answer: B
Rationale: The activated partial thromboplastin time (aPTT) is specifically used to monitor the effectiveness of heparin therapy. It should be maintained at 1.5 to 2 times the normal level. Monitoring aPTT helps ensure that the therapeutic range of heparin is achieved to prevent clot formation while minimizing the risk of bleeding complications. Choice A (PT) is incorrect as it is used to monitor warfarin therapy, not heparin. Choice C (INR) is also incorrect as it is primarily used to monitor warfarin therapy. Choice D (Platelet count) is not directly related to monitoring the effectiveness of heparin therapy.
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