ATI LPN
ATI LPN Pharmacology Quiz Questions
Extract:
Question 1 of 5
Which of the following complaints by a man taking gentamycin would be most indicative that he is experiencing ototoxicity?
Correct Answer: A
Rationale: Gentamicin, an aminoglycoside, can cause ototoxicity, leading to hearing loss or tinnitus. Difficulty hearing the television directly indicates auditory impairment. Tingling suggests neuropathy, BUN/creatinine elevation indicates nephrotoxicity, and mental status changes are nonspecific.
Question 2 of 5
A nurse is preparing to administer ondansetron 4 mg IM stat. The amount available is ondansetron for injection 2 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: 2
Rationale: Using Volume (mL) = Dose (mg) ÷ Concentration (mg/mL), for a 4 mg dose and 2 mg/mL concentration, Volume = 4 ÷ 2 = 2 mL, a whole number as required.
Question 3 of 5
The nurse needs to monitor a client's blood sugar after administration of insulin regular (Humulin R). When does the nurse expect to assess the client's blood sugar based on the peak action of the medication?
Correct Answer: D
Rationale: Regular insulin (Humulin R) peaks at 2–4 hours, when the risk of hypoglycemia is highest, necessitating blood sugar monitoring. Other time frames correspond to onset (15–30 min) or later duration, not peak effect.
Question 4 of 5
The nurse is caring for a client with a diagnosis of urinary tract infection. The physician has ordered an antibiotic. What is the priority prior to administering this medication?
Correct Answer: C
Rationale: A urine culture and sensitivity test identifies the causative bacteria and effective antibiotics, ensuring targeted treatment. Platelet count, blood pressure, and PTT are not priorities for UTI antibiotic administration.
Question 5 of 5
The nurse is admitting a patient to the acute care floor. While obtaining the history, the client tells the nurse she is allergic to penicillin. Which of the following medications, if ordered by the physician, would be safe for this client?
Correct Answer: A
Rationale: Erythromycin, a macrolide antibiotic, has a different chemical structure from penicillins, making it safe for penicillin-allergic patients. Piperacillin-tazobactam and ampicillin sulbactam are penicillin derivatives, contraindicated due to allergy risk. Cefazolin, a cephalosporin, carries a potential for cross-reactivity, especially with severe penicillin allergies, and should be used cautiously or avoided.