ATI RN
ATI Capstone Pharmacology Assessment 1
1. A client is receiving magnesium sulfate for the management of preeclampsia. Which of the following client assessments should the nurse monitor to prevent complications of therapy?
- A. Bowel sounds
- B. Deep tendon reflexes
- C. Oxygen saturation
- D. Fluid balance
Correct answer: B
Rationale: The correct answer is deep tendon reflexes. Monitoring deep tendon reflexes is crucial to assess for magnesium toxicity during therapy for preeclampsia. Magnesium sulfate can lead to neuromuscular blockade, reflected by decreased or absent deep tendon reflexes. Assessing bowel sounds (choice A) is important for gastrointestinal function but is not directly related to magnesium sulfate therapy. Oxygen saturation (choice C) is vital for respiratory status but is not specifically linked to magnesium sulfate administration. Fluid balance (choice D) is essential but does not directly correlate with monitoring for complications of magnesium sulfate therapy in the context of preeclampsia.
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 morphine sulfate 2 mg IV bolus. Available is morphine sulfate 10 mg/mL. How many mL should the nurse administer per dose?
- A. 0.2 mL
- B. 0.4 mL
- C. 0.6 mL
- D. 0.8 mL
Correct answer: A
Rationale: The nurse should administer 0.2 mL of morphine sulfate. To calculate this, divide the desired dose (2 mg) by the concentration of the available solution (10 mg/mL). 2 mg / 10 mg/mL = 0.2 mL. Therefore, the nurse should administer 0.2 mL of morphine sulfate. Choices B, C, and D are incorrect as they do not reflect the accurate calculation based on the provided concentration and desired dose.
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 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.
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