LPN Pharmacology Practice Questions

Correct Answer: A

Rationale: The client's cracked tongue and sunken eyes indicate dehydration. Therefore, the priority nursing intervention is to help the client determine ways to increase his fluid intake. Dehydration can exacerbate the client's emphysema symptoms and lead to further complications. Monitoring and addressing the client's fluid intake is crucial for maintaining his health and well-being. Options B, C, and D are not the immediate priorities in this situation. While an eye examination, oxygen use, and sensitivity tests are relevant aspects of care, addressing dehydration through increased fluid intake takes precedence in this scenario.

Correct Answer: B

Rationale: Furosemide is a loop diuretic that can lead to significant potassium loss, making it crucial to monitor the client's serum potassium levels. Hypokalemia (low potassium levels) can result from furosemide use, potentially leading to adverse effects such as cardiac dysrhythmias. Therefore, close monitoring of serum potassium levels is essential to prevent complications in clients receiving furosemide. Monitoring serum calcium, sodium, or glucose levels is not the priority when administering furosemide.

Correct Answer: D

Rationale: Grapefruit juice should be avoided while taking verapamil as it can increase drug levels and the risk of side effects. The interaction between grapefruit juice and verapamil can lead to higher concentrations of the medication in the bloodstream, potentially causing adverse effects. Orange juice, coffee, and milk do not have significant interactions with verapamil. Therefore, it is crucial for the client to avoid grapefruit juice to ensure the safe and effective use of verapamil.

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: B

Rationale: The correct technique for using a metered-dose inhaler (MDI) involves exhaling fully before inhaling deeply while pressing the canister to ensure effective delivery of the medication. Choice A is incorrect as exhaling should precede inhaling. Choice C is incorrect as taking two short breaths is not part of the correct technique. Choice D is incorrect as there is no need to hold the breath for a specific time after inhaling the medication.