ATI RN
ATI Capstone Pharmacology Assessment 1
1. A nurse is caring for a client receiving IV vancomycin. The nurse notes flushing of the client's neck and chest. Which of the following actions should the nurse take?
- A. Stop the infusion
- B. Document the findings as a harmless reaction
- C. Slow the infusion rate
- D. Administer diphenhydramine
Correct answer: C
Rationale: The correct action for the nurse to take when a client receiving IV vancomycin shows flushing of the neck and chest is to slow the infusion rate. Flushing is a common sign of Red Man Syndrome, which is associated with rapid infusions of vancomycin. Slowing down the infusion rate can help prevent further flushing and the development of Red Man Syndrome. Stopping the infusion (Choice A) may be too drastic if the symptoms are mild and can be managed by slowing the rate. Documenting the findings as a harmless reaction (Choice B) is incorrect because flushing should be addressed promptly to prevent complications. Administering diphenhydramine (Choice D) is not the initial or best intervention for flushing associated with vancomycin; slowing the infusion rate is the priority.
2. A client with an artificial heart valve is prescribed warfarin therapy. Which of the following laboratory values should the nurse monitor to assess the therapeutic effect of warfarin?
- A. Hemoglobin (Hgb)
- B. Prothrombin time (PT)
- C. Bleeding time
- D. Activated partial thromboplastin time (aPTT)
Correct answer: B
Rationale: The correct answer is B: Prothrombin time (PT). Warfarin is an anticoagulant medication that works by inhibiting the clotting factors dependent on vitamin K, such as factors II, VII, IX, and X. The prothrombin time (PT) measures the extrinsic pathway and is used to monitor the therapeutic effects of warfarin therapy. Monitoring PT helps assess the time it takes for the blood to clot, ensuring that the anticoagulant effect is within the desired range. Choices A, C, and D are incorrect because hemoglobin (Hgb) measures the amount of hemoglobin in the blood, bleeding time assesses the time it takes for bleeding to stop, and activated partial thromboplastin time (aPTT) is used to monitor heparin therapy, not warfarin therapy.
3. A nurse is preparing to administer nitroglycerin ointment to a client. Which of the following actions should the nurse take?
- A. Apply the ointment to the client's hairless chest
- B. Rub the ointment gently into the skin
- C. Cover the applied ointment with a transparent dressing
- D. Massage the ointment into the skin
Correct answer: A
Rationale: The correct action is to apply the nitroglycerin ointment to a hairless area of the client's chest, back, or upper arms. This allows for better absorption of the medication. Choice B is incorrect because rubbing the ointment gently into the skin may be appropriate, but the primary action is to ensure application on a hairless area. Choice C is incorrect as covering the ointment with a transparent dressing is not a standard practice for nitroglycerin ointment administration. Choice D is incorrect because massaging the ointment into the skin is not recommended, as it can alter absorption rates.
4. A nurse is providing care to a client with staphylococcus epidermidis who is prescribed vancomycin. Identify the adverse effect associated with the antibiotic therapy.
- A. Hepatotoxicity
- B. Constipation
- C. Infusion reaction
- D. Immunosuppression
Correct answer: C
Rationale: The correct answer is C: Infusion reaction. Vancomycin can cause infusion reactions like 'Red Man Syndrome,' which involves rashes, flushing, tachycardia, and hypotension. Hepatotoxicity (choice A) is not a common adverse effect of vancomycin. Constipation (choice B) is not typically associated with vancomycin use. Immunosuppression (choice D) is not a direct adverse effect of vancomycin therapy.
5. A healthcare provider is preparing to administer heparin sodium to a client with deep vein thrombosis (DVT). Which of the following laboratory values should the provider monitor during therapy?
- A. INR
- B. Serum creatinine
- C. aPTT
- D. Bilirubin
Correct answer: C
Rationale: The correct answer is C: aPTT. The healthcare provider should monitor the activated partial thromboplastin time (aPTT) value during heparin therapy to assess the client's coagulation status. Heparin affects the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps ensure that the client is within the therapeutic range to prevent bleeding or clotting issues. INR (Choice A) is used to monitor warfarin therapy, not heparin. Serum creatinine (Choice B) is not directly related to monitoring heparin therapy. Bilirubin (Choice D) is related to liver function, not heparin therapy.
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