ATI LPN
Pharmacology for LPN
1. 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.
2. A client has a new prescription for sertraline. Which of the following statements by the client indicates an understanding of the teaching?
- A. I should take this medication at bedtime.
- B. I may experience sexual dysfunction.
- C. I should avoid drinking grapefruit juice.
- D. I may experience weight loss while taking this medication.
Correct answer: B
Rationale: The correct answer is B. Sexual dysfunction is a common side effect of sertraline. When the client mentions this potential side effect, it indicates an understanding of the teaching about the medication's effects. This response shows awareness of a significant adverse effect that the client should be informed about when starting sertraline. Choices A, C, and D are incorrect because taking sertraline at bedtime, avoiding grapefruit juice, or experiencing weight loss are not key teaching points associated with this medication.
3. Before administering digoxin (Lanoxin) to a client diagnosed with heart failure, the nurse should perform which assessment?
- A. Check the blood pressure.
- B. Obtain an electrocardiogram (ECG).
- C. Assess the apical pulse.
- D. Review the latest electrolyte levels.
Correct answer: C
Rationale: Assessing the apical pulse is crucial before administering digoxin because the medication can lead to bradycardia. Monitoring the apical pulse helps determine the heart rate, and digoxin is typically withheld if the pulse is below 60 beats per minute. This assessment is essential to prevent potential adverse effects associated with digoxin administration. Checking the blood pressure (Choice A) is important but not specific to digoxin administration. Obtaining an electrocardiogram (ECG) (Choice B) may provide valuable information but is not the primary assessment needed before administering digoxin. Reviewing the latest electrolyte levels (Choice D) is important for assessing the overall condition but is not the immediate assessment required before administering digoxin.
4. The nurse is assisting with the care of a client who is on a continuous heparin infusion for deep vein thrombosis (DVT). Which laboratory test should the nurse monitor to evaluate the effectiveness of the therapy?
- A. Prothrombin time (PT)
- B. Activated partial thromboplastin time (aPTT)
- C. International normalized ratio (INR)
- D. Platelet count
Correct answer: B
Rationale: To evaluate the effectiveness of heparin therapy in a client with DVT, the nurse should monitor the activated partial thromboplastin time (aPTT). The aPTT test helps ensure that the dose of heparin is within the therapeutic range, which is essential for preventing clot formation or excessive bleeding. Monitoring aPTT is crucial in managing patients on heparin therapy to maintain the delicate balance between preventing thrombosis and avoiding hemorrhage. Prothrombin time (PT) and International normalized ratio (INR) are more indicative of warfarin therapy effectiveness, not heparin. Platelet count assesses platelet levels and function, not the effectiveness of heparin therapy for DVT.
5. During an assessment, a client taking valproic acid exhibits elevated liver enzymes. What finding should the nurse report to the provider?
- A. Elevated liver enzymes
- B. Weight loss
- C. Dry mouth
- D. Increased appetite
Correct answer: A
Rationale: Elevated liver enzymes are a critical finding that the nurse should report to the provider when assessing a client taking valproic acid. It can be indicative of hepatotoxicity, a severe side effect associated with valproic acid use. Timely reporting and intervention are essential to prevent further complications and ensure the client's safety and well-being. Choices B, C, and D are not directly related to valproic acid use or the manifestation of hepatotoxicity. Weight loss, dry mouth, and increased appetite are not typically associated with elevated liver enzymes in the context of valproic acid administration.
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