ATI RN
ATI Capstone Pharmacology Assessment 1
1. A client is prescribed spironolactone. Which of the following findings would indicate an adverse effect of this medication?
- A. Hyperkalemia
- B. Hypokalemia
- C. Hyponatremia
- D. Hypernatremia
Correct answer: A
Rationale: Hyperkalemia is the correct answer as it is an adverse effect associated with spironolactone, a potassium-sparing diuretic. Spironolactone works by blocking the aldosterone receptor in the distal convoluted tubule, leading to decreased potassium excretion and potential hyperkalemia. Hypokalemia (choice B) and hyponatremia (choice C) are not typically associated with spironolactone use. Hypernatremia (choice D) is also an unlikely finding with spironolactone.
2. A nurse is caring for a client prescribed enoxaparin for deep vein thrombosis prophylaxis. Which of the following client assessments requires immediate intervention?
- A. Platelet count of 95,000/mm³
- B. Blood pressure of 145/90 mmHg
- C. Heart rate of 95 beats per minute
- D. Pain at the injection site
Correct answer: A
Rationale: A platelet count of 95,000/mm³ requires immediate intervention as it is low and increases the risk of bleeding, which is a potential complication of enoxaparin therapy. Low platelet counts can predispose the patient to hemorrhage, and administering anticoagulants like enoxaparin in such cases can further increase the bleeding risk. Monitoring platelet counts is crucial during anticoagulant therapy to prevent serious bleeding complications. The other options do not pose immediate risks related to enoxaparin therapy. A slightly elevated blood pressure, a heart rate of 95 beats per minute, and pain at the injection site are common findings that may not warrant immediate intervention in this context.
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 nurse is caring for a client prescribed clopidogrel. Which of the following client histories is a contraindication to the administration of this medication?
- A. Recent surgery
- B. Peptic ulcer disease
- C. Bleeding disorder
- D. Uncontrolled hypertension
Correct answer: D
Rationale: The correct answer is D: Uncontrolled hypertension. Clopidogrel should not be administered to clients with uncontrolled hypertension due to the increased risk of bleeding. Recent surgery, peptic ulcer disease, and bleeding disorders are not absolute contraindications for clopidogrel administration.
5. A client receiving epoetin alfa therapy for anemia is being monitored for therapeutic effects. Which of the following laboratory values indicates the medication is effective?
- A. White blood cell count
- B. Hematocrit
- C. Platelet count
- D. Red blood cell count
Correct answer: B
Rationale: The correct answer is B: Hematocrit. An increase in hematocrit levels indicates the effectiveness of epoetin alfa in treating anemia. Hematocrit reflects the percentage of red blood cells in the blood, so an increase in hematocrit signifies an improvement in the patient's red blood cell count and oxygen-carrying capacity. Choices A, C, and D are incorrect because white blood cell count, platelet count, and red blood cell count do not directly reflect the therapeutic effects of epoetin alfa in treating anemia.
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