ATI RN
ATI Pharmacology Proctored Exam 2019
1. A client is starting therapy with Metformin. Which of the following instructions should the nurse include?
- A. Take this medication with your first bite of food.
- B. Take this medication on an empty stomach.
- C. Take this medication before bedtime.
- D. Take this medication every other day.
Correct answer: A
Rationale: Metformin should be taken with meals to reduce gastrointestinal side effects and ensure better absorption. Instructing the client to take the medication with the first bite of food helps in achieving optimal effectiveness and minimizes the risk of side effects like nausea or upset stomach. Choice B is incorrect because taking Metformin on an empty stomach can lead to increased gastrointestinal side effects. Choice C is incorrect as there is no specific timing requirement for taking Metformin before bedtime. Choice D is incorrect as Metformin is usually taken daily, not every other day.
2. A client has a new prescription for Losartan. Which of the following laboratory values should the nurse monitor?
- A. Serum potassium
- B. Serum sodium
- C. Serum calcium
- D. Serum magnesium
Correct answer: A
Rationale: Corrected Rationale: Losartan, an angiotensin II receptor blocker (ARB), can cause hyperkalemia. The nurse should monitor the client's serum potassium levels closely because Losartan can increase potassium levels, potentially leading to serious complications such as arrhythmias. Monitoring serum sodium, calcium, or magnesium levels is not typically necessary when a patient is prescribed Losartan, as these values are not directly affected by this medication.
3. A client with peptic ulcer disease is prescribed omeprazole. Which finding should indicate to the nurse that the medication is effective?
- A. Relief of headache
- B. Relief of nausea
- C. Relief of abdominal pain
- D. Relief of heartburn
Correct answer: C
Rationale: Relief of abdominal pain is a key indicator of omeprazole effectively treating peptic ulcer disease. Omeprazole works by reducing stomach acid production, which helps alleviate abdominal pain associated with peptic ulcers. While relief of other symptoms like headache, nausea, and heartburn may also occur, the primary therapeutic goal of omeprazole in peptic ulcer disease is to reduce abdominal pain caused by gastric irritation. Therefore, the relief of abdominal pain is the most significant finding to indicate the effectiveness of omeprazole in this context. Choices A, B, and D may improve as a result of decreased stomach acid production, but they are not as specific or central to the therapeutic goal of treating peptic ulcer disease as the relief of abdominal pain.
4. When providing discharge instructions to a client with a new prescription for Levofloxacin, which of the following instructions should the nurse include?
- A. Take this medication with food.
- B. Avoid taking this medication with dairy products.
- C. Take this medication at bedtime.
- D. Increase your intake of potassium-rich foods.
Correct answer: B
Rationale: The correct answer is to instruct the client to avoid taking Levofloxacin with dairy products. This is because calcium in dairy products can interfere with the absorption of the medication. Patients should be advised to take Levofloxacin either 1 hour before or 2 hours after consuming dairy products to ensure optimal effectiveness. Choice A is incorrect because Levofloxacin can be taken with or without food. Choice C is incorrect as the timing of Levofloxacin administration is not specified as at bedtime. Choice D is also incorrect as there is no need to increase intake of potassium-rich foods specifically for Levofloxacin administration.
5. A client is receiving heparin therapy. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the therapy?
- A. PT
- B. aPTT
- C. INR
- D. Platelet count
Correct answer: B
Rationale: The corrected answer is B: aPTT. The activated partial thromboplastin time (aPTT) is the laboratory value used to monitor the effectiveness of heparin therapy. The aPTT should be maintained at 1.5 to 2 times the normal level to ensure therapeutic anticoagulation. Monitoring aPTT helps healthcare providers adjust heparin doses to achieve the desired anticoagulant effects and prevent complications such as bleeding or clotting. Choice A, PT (prothrombin time), is used to monitor warfarin therapy, not heparin. Choice C, INR (international normalized ratio), is also used to monitor warfarin therapy. Choice D, platelet count, is important for assessing the risk of bleeding, but it does not directly monitor the effectiveness of heparin therapy.
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