LPN Pharmacology Practice Questions

Correct Answer: B

Rationale: Corrected Rationale: Bradycardia is a common sign of digoxin toxicity. Digoxin can cause bradycardia due to its effects on the heart's electrical conduction system. Monitoring for a slow heart rate is crucial as it indicates potential toxicity. Hypertension, hyperglycemia, and insomnia are not typically associated with digoxin toxicity. Hypertension is more commonly seen in other conditions, hyperglycemia is not a typical sign of digoxin toxicity, and insomnia is not a recognized symptom of digoxin toxicity.

Correct Answer: A

Rationale: The correct instruction for discharge teaching regarding digoxin (Lanoxin) is to advise the client to take their pulse before each dose and to hold the medication if their pulse is below 60 beats per minute. Digoxin can cause bradycardia, so monitoring the pulse is crucial to prevent potential complications. Choice B is incorrect because excessive fluid intake can lead to fluid overload, worsening heart failure. Choice C is not directly related to digoxin therapy. Choice D is inaccurate as digoxin is usually taken on an empty stomach to facilitate absorption.

Correct Answer: B

Rationale: In this scenario, the client is exhibiting signs of pulmonary edema, which can occur as a complication of myocardial infarction. Crackles are typically heard in cases of pulmonary edema, characterized by fluid accumulation in the lungs. These crackling sounds are heard during inspiration and sometimes expiration and are an indication of fluid-filled alveoli. Therefore, when assessing the client with these symptoms, the nurse would expect to hear crackles bilaterally. Rhonchi, which are coarse rattling respiratory sounds, are typically associated with conditions like bronchitis or pneumonia, not pulmonary edema. Wheezes are high-pitched musical sounds heard in conditions like asthma or COPD, not commonly present in pulmonary edema. Diminished breath sounds suggest decreased airflow or lung consolidation, not typical findings in pulmonary edema.

Correct Answer: D

Rationale: Administering ceftriaxone in a large muscle is crucial for proper absorption and to reduce the risk of pain or tissue irritation. Intramuscular administration of ceftriaxone helps achieve optimal therapeutic levels in the bloodstream for the treatment of the pelvic infection. Choices A, B, and C are incorrect. Choice A is not recommended as ceftriaxone should not be administered as a bolus over 5 minutes. Choice B is irrelevant because the question is about the administration route, not the reconstitution process. Choice C is also irrelevant as it does not pertain to the administration but to the quality of the reconstituted medication.

Correct Answer: C

Rationale: The correct answer is C: Hypokalemia. Furosemide, a loop diuretic, commonly causes potassium loss, leading to hypokalemia. The nurse should closely monitor for decreased potassium levels in a client receiving furosemide to prevent complications such as cardiac arrhythmias or muscle weakness. Hyperkalemia (Choice A) is not typically associated with furosemide use. Hypernatremia (Choice B) refers to high sodium levels and is not the primary concern with furosemide. Hyponatremia (Choice D) is low sodium levels, which can occur but is less common than hypokalemia in clients taking furosemide.