ATI RN
ATI Pharmacology Proctored Exam 2019
1. A client has a new prescription for Warfarin. Which of the following statements by the client indicates a need for further teaching?
- A. I will avoid eating large amounts of green leafy vegetables.
- B. I will take my medication at the same time every day.
- C. I will increase my intake of foods high in potassium.
- D. I will report any signs of bleeding to my provider.
Correct answer: C
Rationale: The correct answer is C because Warfarin interacts with vitamin K, not potassium. Therefore, the client needs to be cautious with foods high in vitamin K, such as green leafy vegetables, rather than foods high in potassium. Choices A, B, and D are correct statements regarding Warfarin therapy and do not indicate a need for further teaching.
2. A client has a new prescription for allopurinol. Which of the following instructions should the nurse include?
- A. Drink 2 liters of water daily.
- B. Avoid taking the medication on an empty stomach.
- C. Limit vitamin C intake while taking this medication.
- D. Take an iron supplement while on this medication.
Correct answer: A
Rationale: The correct instruction for a client prescribed allopurinol is to drink 2 liters of water daily. This helps reduce the risk of kidney stones, a potential side effect of allopurinol use. Adequate hydration is essential to prevent kidney stone formation and maintain kidney function while taking this medication.
3. While caring for a client receiving Heparin therapy, which of the following laboratory tests should the nurse monitor to evaluate the effectiveness of the therapy?
- A. PT
- B. INR
- C. aPTT
- D. Platelet count
Correct answer: C
Rationale: The nurse should monitor the aPTT (activated partial thromboplastin time) when caring for a client receiving Heparin therapy. The aPTT reflects the intrinsic pathway of the clotting cascade and is used to monitor the effectiveness of heparin, which primarily affects this pathway by potentiating antithrombin III. Monitoring the aPTT helps ensure that the client's blood is within the therapeutic range to prevent thrombus formation. Choices A, B, and D are incorrect. PT (Prothrombin Time) and INR (International Normalized Ratio) are used to monitor Warfarin therapy, not Heparin. Platelet count is important in assessing for thrombocytopenia but is not a specific indicator of Heparin therapy effectiveness.
4. 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.
5. A client reports taking Aspirin about four times daily for a sprained wrist. Which of the following prescribed medications taken by the client is contraindicated with aspirin?
- A. Digoxin
- B. Metformin
- C. Warfarin
- D. Nitroglycerin
Correct answer: C
Rationale: The correct answer is C, Warfarin. Aspirin increases the effect of anticoagulants like warfarin by inhibiting platelet aggregation, leading to an increased risk of bleeding. Therefore, the use of aspirin is generally contraindicated for clients taking warfarin. Choices A, B, and D are not contraindicated with aspirin. Digoxin, Metformin, and Nitroglycerin do not have significant interactions with Aspirin, unlike Warfarin, making them safe to use concomitantly.
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