ATI LPN
LPN Pharmacology Practice Test
1. A nurse is assessing a client who has been taking levothyroxine for hypothyroidism. Which of the following findings should the nurse report to the provider?
- A. Weight loss
- B. Insomnia
- C. Heat intolerance
- D. Dry skin
Correct answer: C
Rationale: The correct answer is C: Heat intolerance. Heat intolerance is a sign of levothyroxine toxicity and requires immediate attention. Weight loss may actually be an expected outcome of levothyroxine therapy as it can help regulate metabolism in hypothyroidism. Insomnia can occur as a side effect of levothyroxine but is not as concerning as heat intolerance. Dry skin is a common symptom of hypothyroidism and may improve with levothyroxine therapy, so it is not a priority finding to report to the provider.
2. The nurse is caring for a client who has returned to the unit after undergoing a cardiac catheterization. The nurse should monitor for which common complication following this procedure?
- A. Hypertension
- B. Hypotension
- C. Hemorrhage
- D. Hyperglycemia
Correct answer: C
Rationale: Following a cardiac catheterization, a common complication to monitor for is bleeding or hemorrhage at the catheter insertion site. Hemorrhage is a significant concern due to the potential for rapid blood loss, leading to hypovolemic shock and other serious complications. Monitoring for signs of bleeding, such as swelling, hematoma, or drop in hemoglobin levels, is crucial for timely intervention. Hypertension is not a common complication post-cardiac catheterization; instead, hypotension may occur due to vasovagal response or bleeding. Hyperglycemia is not typically associated with cardiac catheterization unless the client has pre-existing diabetes or stress-induced hyperglycemia.
3. A client has a new prescription for clozapine. Which of the following instructions should the nurse include?
- A. You should have your white blood cell count checked regularly.
- B. You should take this medication on an empty stomach.
- C. You should avoid eating foods high in tyramine.
- D. You should avoid taking this medication with milk.
Correct answer: A
Rationale: The correct answer is A: 'You should have your white blood cell count checked regularly.' Clozapine can lead to agranulocytosis, a serious condition characterized by a low white blood cell count. Regular monitoring of the white blood cell count is crucial to detect this adverse effect early and prevent serious complications. Choices B, C, and D are incorrect because taking clozapine on an empty stomach, avoiding foods high in tyramine, or avoiding taking the medication with milk are not specific instructions related to the potential adverse effect of agranulocytosis associated with clozapine.
4. A 24-year-old man seeks medical attention for complaints of claudication in the arch of the foot. The nurse also notes superficial thrombophlebitis of the lower leg. What should the nurse check the client for next?
- A. Smoking history
- B. Recent exposure to allergens
- C. History of recent insect bites
- D. Familial tendency toward peripheral vascular disease
Correct answer: A
Rationale: In this case, the nurse should check the client's smoking history next. Smoking is a significant risk factor for peripheral vascular disease, leading to the development of thrombophlebitis and claudication. It is important to assess this risk factor as it can significantly impact the client's vascular health and the progression of their current symptoms. Choices B, C, and D are incorrect because they are not directly related to the symptoms described by the client. Recent exposure to allergens or insect bites would typically present with different symptoms, and familial tendency toward peripheral vascular disease is not the immediate concern in this case.
5. The client is receiving heparin therapy for deep vein thrombosis (DVT). Which lab test should be monitored to evaluate the effectiveness of heparin?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Fibrinogen levels
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the appropriate lab test to monitor the therapeutic effectiveness of heparin therapy. Heparin affects the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps ensure the client is within the therapeutic range to prevent clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, a different anticoagulant that affects the extrinsic pathway of the coagulation cascade. Fibrinogen levels are not specific to monitoring heparin therapy.
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