ATI RN
ATI Pharmacology Proctored Exam
1. A provider prescribes phenobarbital for a client who has a seizure disorder. The medication has a long half-life of 4 days. How many times per day should the nurse expect to administer this medication?
- A. One
- B. Two
- C. Three
- D. Four
Correct answer: A
Rationale: Phenobarbital, with a long half-life of 4 days, remains at therapeutic levels in the body for an extended period. Due to this prolonged duration of action, the nurse should administer phenobarbital once a day to maintain a consistent therapeutic effect without the need for multiple daily doses. Administering the medication more than once a day would not be necessary and could increase the risk of side effects or toxicity. Therefore, the correct answer is to administer phenobarbital once a day.
2. A client is taking Furosemide for heart failure. Which of the following findings is a priority to report to the provider?
- A. Weight loss of 1 kg in 24 hours
- B. Blood pressure of 104/60 mm Hg
- C. Potassium level of 3.5 mEq/L
- D. Urine output of 200 mL in 8 hours
Correct answer: D
Rationale: A urine output of 200 mL in 8 hours indicates decreased kidney function, potentially due to Furosemide therapy. This finding can suggest inadequate renal perfusion and impaired drug clearance, necessitating immediate reporting to prevent further complications like electrolyte imbalances and worsening heart failure. Choice A: Weight loss may be expected in heart failure patients due to fluid retention, but it is not an immediate concern. Choice B: A blood pressure of 104/60 mm Hg is slightly low but not a priority compared to the indication of kidney dysfunction. Choice C: A potassium level of 3.5 mEq/L is within the normal range, so it does not require immediate reporting.
3. A client has a new prescription for Prednisone. Which of the following laboratory values should the nurse monitor?
- A. Serum potassium
- B. Serum calcium
- C. Serum sodium
- D. Serum glucose
Correct answer: D
Rationale: The correct answer is D, Serum glucose. Prednisone is a corticosteroid that can lead to hyperglycemia. Monitoring serum glucose levels is essential to assess for elevated blood sugar levels. Choices A, B, and C are incorrect as Prednisone does not directly affect potassium, calcium, or sodium levels.
4. A client is receiving Morphine IV for pain management. Which of the following actions should the nurse take to monitor for adverse effects?
- A. Monitor the client's respiratory rate every 15 minutes.
- B. Monitor the client's blood pressure every 30 minutes.
- C. Monitor the client's oxygen saturation every hour.
- D. Monitor the client's heart rate every 5 minutes.
Correct answer: A
Rationale: The correct action for the nurse to monitor for adverse effects of Morphine IV is to check the client's respiratory rate every 15 minutes. Respiratory depression is a potentially life-threatening adverse effect of Morphine. Monitoring the respiratory rate frequently allows for early detection and intervention if needed. Monitoring blood pressure, oxygen saturation, or heart rate alone may not provide early signs of respiratory depression, which is a critical adverse effect of Morphine IV.
5. 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.
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