ATI RN
ATI Pharmacology Test Bank
1. 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.
2. A client with Preeclampsia is receiving Magnesium Sulfate IV continuous infusion. Which of the following findings should the nurse report to the provider?
- A. 2+ deep tendon reflexes
- B. 2+ pedal edema
- C. 24 mL/hr urinary output
- D. Respirations 12/min
Correct answer: C
Rationale: In a client receiving Magnesium Sulfate IV continuous infusion for Preeclampsia, a urinary output less than 25 to 30 mL/hr is indicative of magnesium sulfate toxicity and should be promptly reported to the provider for further evaluation and management. Therefore, the correct answer is C. Option A, 2+ deep tendon reflexes, are expected findings in a client receiving magnesium sulfate and do not require immediate reporting. Option B, 2+ pedal edema, is a common symptom of preeclampsia and typically does not require immediate intervention. Option D, respirations 12/min, are within the normal range and do not indicate an immediate need for reporting to the provider.
3. Which drug class has been found to decrease mortality if given within 8 hours of an MI due to a decrease in cardiac workload?
- A. Antiplatelets
- B. Beta-adrenergic blockers
- C. ACE inhibitors
- D. Calcium channel blockers
Correct answer: B
Rationale: Beta-adrenergic blockers have been shown to decrease mortality when administered within 8 hours of a myocardial infarction (MI). They do so by reducing cardiac workload, which helps improve outcomes post-MI. These drugs work by blocking the effects of adrenaline on the heart, leading to decreased heart rate, blood pressure, and myocardial oxygen demand, thereby protecting the heart muscle from further damage. This makes them a crucial part of the treatment regimen for acute coronary syndromes like MI.
4. A client with HIV is starting therapy with zidovudine. The nurse should monitor the client for which of the following adverse effects of this medication?
- A. Fatigue
- B. Blurred vision
- C. Ringing in the ears
- D. Constipation
Correct answer: A
Rationale: Fatigue is a common adverse effect of zidovudine due to its impact on bone marrow, leading to anemia. Zidovudine is known to cause bone marrow suppression, resulting in decreased production of red blood cells and subsequent fatigue.
5. A client in an outpatient facility is taking Acarbose for type 2 Diabetes Mellitus. Which of the following laboratory tests should the nurse plan to monitor?
- A. WBC
- B. Serum potassium
- C. Platelet count
- D. Liver function test
Correct answer: D
Rationale: The correct answer is D: Liver function test. Acarbose, used for type 2 Diabetes Mellitus, can lead to liver toxicity with long-term use. Monitoring liver function tests periodically is crucial to detect any signs of liver dysfunction early and prevent complications. Choices A, B, and C are incorrect as Acarbose does not directly affect WBC, serum potassium, or platelet count levels.
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