ATI RN
ATI Pharmacology Proctored Exam 2019
1. A client is prescribed Clopidogrel. Which of the following laboratory values should be monitored to assess for potential adverse effects?
- A. White blood cell count
- B. Platelet count
- C. Hemoglobin
- D. Blood glucose
Correct answer: B
Rationale: Clopidogrel is an antiplatelet medication, so monitoring the client's platelet count is crucial to assess for potential bleeding complications. Changes in platelet count can indicate an increased risk of bleeding, a known adverse effect of Clopidogrel. Monitoring white blood cell count, hemoglobin, or blood glucose is not directly related to the potential adverse effects of Clopidogrel and would not provide relevant information regarding the medication's impact on platelet function.
2. A client with deep vein thrombosis has been on heparin continuous infusion for 5 days. The provider prescribes warfarin PO without discontinuing the heparin. The client asks the nurse why both anticoagulants are necessary. Which of the following statements should the nurse make?
- A. Warfarin takes several days to work, so the IV heparin will be used until the warfarin reaches a therapeutic level.
- B. I will call the provider to get a prescription for discontinuing the IV heparin today.
- C. Both heparin and warfarin work together to dissolve the clots.
- D. The IV heparin increases the effects of the warfarin and decreases the length of your hospital stay.
Correct answer: A
Rationale: The correct answer is A because warfarin takes several days to reach a therapeutic level and exert its full anticoagulant effect. During this time, the IV heparin is continued to prevent clotting until the warfarin is effective. Both medications are used together temporarily for this reason. Discontinuing heparin prematurely can increase the risk of clot formation. Therefore, the nurse should explain to the client that the IV heparin will be continued until the warfarin reaches a therapeutic level.
3. What is the antidote for Warfarin?
- A. Vitamin D
- B. Vitamin C
- C. Vitamin K
- D. Vitamin B6
Correct answer: C
Rationale: Vitamin K is the antidote for Warfarin toxicity as it helps reverse the anticoagulant effects of Warfarin. Warfarin works by inhibiting vitamin K-dependent clotting factors, and administering vitamin K can replenish these factors, thereby counteracting the anticoagulant effects of Warfarin. Vitamin D, Vitamin C, and Vitamin B6 do not have the specific mechanism to counteract the anticoagulant effects of Warfarin, making them incorrect choices.
4. A client is being assessed by a healthcare provider while taking Digoxin to manage heart failure. Which of the following findings is a manifestation of digoxin toxicity?
- A. Bruising
- B. Report of metallic taste
- C. Muscle pain
- D. Report of anorexia
Correct answer: D
Rationale: The correct manifestation of digoxin toxicity is anorexia, not bruising, metallic taste, or muscle pain. Other symptoms of digoxin toxicity include blurred vision, stomach pain, and diarrhea. It is crucial for healthcare providers to promptly identify these signs to prevent severe complications.
5. A client has a new prescription for Aspirin for the prevention of myocardial infarction. Which of the following findings should be identified as an adverse effect?
- A. Nausea
- B. Bruising
- C. Dizziness
- D. Dry mouth
Correct answer: B
Rationale: Bruising is an adverse effect to be monitored when a client is prescribed Aspirin for the prevention of myocardial infarction due to its association with increased bleeding risk. Aspirin's antiplatelet effect can lead to bruising and other signs of bleeding, necessitating close observation to prevent complications. Nausea, dizziness, and dry mouth are not typically recognized adverse effects of Aspirin therapy for myocardial infarction prevention.
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