ATI RN
ATI Pharmacology Proctored Exam 2019
1. When caring for a client prescribed Digoxin, which of the following laboratory values should the nurse monitor to assess for potential toxicity?
- A. Sodium
- B. Potassium
- C. Magnesium
- D. Calcium
Correct answer: B
Rationale: When a client is prescribed Digoxin, monitoring potassium levels is crucial as hypokalemia can increase the risk of Digoxin toxicity. Low potassium levels can potentiate the effects of Digoxin on the heart, leading to toxicity. Therefore, regular monitoring of potassium levels helps in preventing adverse effects and ensuring the safe use of Digoxin. Sodium, magnesium, and calcium levels are not directly associated with Digoxin toxicity; hence, they are not the primary focus for monitoring in this case.
2. What is the antidote for Warfarin?
- A. Naloxone
- B. Vitamin K
- C. Glucagon
- D. Vitamin B
Correct answer: B
Rationale: The correct antidote for Warfarin is Vitamin K. Warfarin works by inhibiting vitamin K-dependent clotting factors. Administering Vitamin K helps reverse its effects by replenishing these factors. Choices A, C, and D are incorrect. Naloxone is used to reverse opioid overdose, Glucagon is used to treat severe low blood sugar, and Vitamin B is not the antidote for Warfarin.
3. A client has a new prescription for Etravirine, an NNRTI. Which of the following statements should the nurse include in teaching the client?
- A. Take this medication with food.
- B. Take this medication on an empty stomach.
- C. Take this medication at the same time every day.
- D. Take this medication at bedtime to prevent drowsiness.
Correct answer: C
Rationale: The correct statement the nurse should include in teaching the client is to take Etravirine at the same time every day. This ensures consistent blood levels and effectiveness of the medication. Consistent timing is essential to achieve optimal therapeutic effects and avoid missing doses. Choices A and B are incorrect because Etravirine should not necessarily be taken with or without food; it is more important to take it consistently. Choice D is incorrect as there is no need to take Etravirine at bedtime to prevent drowsiness.
4. A client with a new prescription for Verapamil to control hypertension is being taught by a healthcare professional. Which of the following client statements indicates an understanding of the teaching?
- A. I should avoid drinking grapefruit juice.
- B. I can expect my heart rate to increase while taking this medication.
- C. This medication will cause my urine to turn orange.
- D. I will stop taking this medication if I experience headaches.
Correct answer: A
Rationale: The correct answer is A. Grapefruit juice can increase blood levels of verapamil, leading to increased effects and potentially serious side effects such as hypotension or bradycardia. It is crucial for the client to avoid grapefruit juice while taking Verapamil to prevent these adverse reactions. Choice B is incorrect because verapamil is a calcium channel blocker that typically lowers heart rate. Choice C is incorrect as verapamil does not cause urine discoloration. Choice D is incorrect because stopping medication abruptly without consulting a healthcare provider can be dangerous.
5. A healthcare professional is preparing to administer acetaminophen 650 mg PO every 6 hr PRN for pain. The amount available is acetaminophen liquid 500 mg/5 mL. How many mL should the healthcare professional administer per dose?
- A. 6.5 mL
- B. 7 mL
- C. 5 mL
- D. 8 mL
Correct answer: A
Rationale: To calculate the volume to administer: (Desired dose / Concentration) = Volume to administer. In this case, (650 mg / 500 mg) x 5 mL = 6.5 mL. Therefore, the healthcare professional should administer 6.5 mL of acetaminophen per dose to achieve the desired 650 mg dose for pain relief. Choice A is correct because it accurately calculates the volume required based on the concentration of the liquid acetaminophen. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the concentration of the liquid medication and the desired dose.
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