ATI LPN
Pharmacology for LPN
1. The client with deep vein thrombosis (DVT) is receiving anticoagulant therapy. Which laboratory test should the nurse monitor to evaluate the effectiveness of the therapy?
- A. Complete blood count (CBC)
- B. Activated partial thromboplastin time (aPTT)
- C. Serum electrolytes
- D. Liver function tests
Correct answer: B
Rationale: Activated partial thromboplastin time (aPTT) is the correct laboratory test to monitor the effectiveness of anticoagulant therapy, especially with heparin. A prolonged aPTT indicates effective anticoagulation, reducing the risk of further clot formation in the client with deep vein thrombosis (DVT). The other options, such as complete blood count (CBC), serum electrolytes, and liver function tests, do not directly assess the therapeutic effectiveness of anticoagulant therapy. Therefore, the correct answer is B.
2. The healthcare provider is preparing to administer a calcium channel blocker to a client with hypertension. What parameter should be checked before administering the medication?
- A. Apical pulse
- B. Serum calcium level
- C. Blood pressure
- D. Respiratory rate
Correct answer: C
Rationale: Before administering a calcium channel blocker to a client with hypertension, the healthcare provider should check the client's blood pressure. Calcium channel blockers are used to lower blood pressure, making it essential to assess the current blood pressure to ensure it is within the appropriate range for administration. Checking the apical pulse (choice A) is not the priority before administering a calcium channel blocker, as the focus should be on blood pressure. Serum calcium level (choice B) is not directly related to the administration of calcium channel blockers for hypertension. Respiratory rate (choice D) is not the primary parameter to check before administering a calcium channel blocker in this scenario.
3. The nurse is preparing to administer an intravenous dose of potassium chloride to a client with hypokalemia. The nurse should monitor for which potential complication?
- A. Hyperkalemia
- B. Hypokalemia
- C. Hypernatremia
- D. Hypercalcemia
Correct answer: A
Rationale: When administering potassium chloride to a client with hypokalemia, the nurse should monitor for hyperkalemia. Potassium chloride supplementation aims to increase potassium levels in individuals with hypokalemia. However, excessive administration can lead to hyperkalemia, which can be a serious and potentially life-threatening complication. Monitoring potassium levels is crucial to prevent this adverse outcome. Hypokalemia (Choice B) is the condition being treated, so it is not a complication of treatment. Hypernatremia (Choice C) refers to high sodium levels and is not directly related to the administration of potassium chloride. Hypercalcemia (Choice D) is an elevated calcium level and is not a common complication associated with potassium chloride administration in hypokalemia.
4. The healthcare provider is reinforcing instructions to a client with heart failure who is prescribed a low-sodium diet. The provider should advise the client to choose which food item?
- A. Canned soup
- B. Fresh vegetables
- C. Processed cheese
- D. Pickled vegetables
Correct answer: B
Rationale: Fresh vegetables are a suitable choice for clients on a low-sodium diet as they are naturally low in sodium and provide essential nutrients. In contrast, canned soup, processed cheese, and pickled vegetables tend to be high in sodium, which is not recommended for individuals with heart failure and on a low-sodium diet. Fresh vegetables are also rich in fiber, vitamins, and minerals, making them a healthier option compared to the other choices provided.
5. A healthcare professional is reviewing laboratory results for a client who has been taking carbamazepine. Which of the following findings should the healthcare professional report to the provider?
- A. WBC count 3,000/mm3
- B. Platelet count 150,000/mm3
- C. Hemoglobin 14 g/dL
- D. Serum potassium 4.5 mEq/L
Correct answer: A
Rationale: A WBC count of 3,000/mm3 indicates leukopenia, a serious side effect of carbamazepine. Leukopenia can increase the risk of infections due to decreased white blood cell count, which is important to report to the provider for further evaluation and management. Platelet count within normal range (choice B), hemoglobin level within normal range (choice C), and serum potassium level within normal range (choice D) are not directly associated with carbamazepine use and do not require immediate reporting as they do not indicate a serious adverse effect.
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