HESI Pharm Review Questions

1. The practical nurse interprets the client’s PPD as a positive skin test. Which drug is considered the primary prophylaxis for a client exposed to active tuberculosis? a. Isoniazid b. Rifampin c. Acyclovir d. Griseofulvin Rationale: Isoniazid is highly specific for Mycobacterium tuberculosis and is the primary drug of choice for clients with positive PPD skin tests. 2. Phenazopyridine is commonly prescribed for clients with urinary tract infections (UTI). Which statement by the practical nurse describes the purpose for the administration of phenazopyridine? a. To change the pH level of the urine b. To decrease the frequency of bladder spasms c. To relieve the painful symptoms caused by the UTI d. To inhibit bacterial replication and avoid growth of resistant organisms 3. A 6-month-old infant is prescribed digoxin for the treatment of congestive heart failure. Which observation by the practical nurse (PN) warrants immediate intervention for signs of digoxin toxicity?