Pharmacology HESI 55 Questions 2023

Correct Answer: A

Rationale: The most important nursing intervention before administering ampicillin to a client with a urinary tract infection is to obtain a clean-catch urine specimen. This specimen is crucial for determining the causative organism and evaluating the effectiveness of pharmacological therapy. It should be collected before starting treatment with an anti-infective agent to ensure accurate diagnosis and appropriate management of the infection.

Correct Answer: D

Rationale: Cimetidine is best absorbed when taken 30 minutes before meals to decrease stomach acid. Administering it before meals allows for optimal absorption and effectiveness of the medication.

Correct Answer: D

Rationale: The effectiveness of amiodarone is best assessed by a reduction in irregular heartbeats, as it is primarily used to treat ventricular dysrhythmias. Angina spells, ankle swelling, and cholesterol levels are not direct indicators of amiodarone's effectiveness.

Correct Answer: A

Rationale: Amiodarone is known to cause pulmonary toxicity, which can manifest as respiratory symptoms. Monitoring for signs such as cough, dyspnea, or chest pain is essential to detect this serious side effect early and prevent further complications.

Correct Answer: C

Rationale: Benztropine, an anticholinergic drug, is used to control extrapyramidal symptoms associated with olanzapine use.