ATI RN
ATI Capstone Pharmacology Assessment 1
1. A nurse is caring for a client who is prescribed warfarin. Which of the following laboratory tests should the nurse review to evaluate the therapeutic effect of this medication?
- A. aPTT
- B. INR
- C. Serum glucose
- D. Bilirubin
Correct answer: B
Rationale: The correct answer is B: INR. The International Normalized Ratio (INR) is the most reliable test for evaluating the therapeutic effects of warfarin therapy. INR measures the clotting ability of the blood and helps determine if the dosage of warfarin is within the therapeutic range. Choice A, aPTT, is not typically used to monitor the effects of warfarin. Choice C, Serum glucose, and choice D, Bilirubin, are not relevant to monitoring the therapeutic effect of warfarin.
2. A client has been prescribed lisinopril. Which of the following medication interactions should the nurse instruct this client about?
- A. Potassium supplements
- B. Ciprofloxacin
- C. Escitalopram
- D. Magnesium supplements
Correct answer: A
Rationale: The correct answer is A: Potassium supplements. Clients taking lisinopril should avoid potassium supplements and potassium-sparing diuretics due to the risk of hyperkalemia. This interaction can lead to dangerously high levels of potassium in the blood, which can be harmful. Choice B, Ciprofloxacin, is not typically associated with a significant interaction with lisinopril. Choice C, Escitalopram, is an antidepressant and does not have a known significant interaction with lisinopril regarding potassium levels. Choice D, Magnesium supplements, are generally safe to take with lisinopril and do not pose a significant risk of hyperkalemia.
3. Disulfiram is taken by a client daily for abstinence maintenance. What is an adverse effect of this therapy?
- A. Hepatotoxicity
- B. Wernicke's aphasia
- C. Suicidal ideations
- D. Diarrhea
Correct answer: A
Rationale: The correct answer is A: Hepatotoxicity. Disulfiram is known to cause hepatotoxicity as a severe adverse effect. This occurs due to the inhibition of aldehyde dehydrogenase, leading to the accumulation of acetaldehyde when alcohol is consumed. Wernicke's aphasia (Choice B) is a language disorder unrelated to disulfiram therapy. Suicidal ideations (Choice C) may be associated with certain medications, but it is not a common adverse effect of disulfiram. Diarrhea (Choice D) is not a typical adverse effect of disulfiram.
4. 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.
5. A 55-year-old client has levothyroxine ordered. Which of the below past medical history concerns may contraindicate with her medication management of hypothyroidism?
- A. Scleroderma
- B. Osteoporosis
- C. Asthma
- D. Peripheral Vascular Disease
Correct answer: B
Rationale: The correct answer is B: Osteoporosis. Osteoporosis is a concern with levothyroxine as it can increase the risk for fractures, particularly in older adults. Levothyroxine treatment can exacerbate bone loss in individuals with osteoporosis. Choices A, C, and D are not directly contraindicated with levothyroxine therapy for hypothyroidism.
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