ATI LPN
ATI LPN Pharmacology Quiz Questions
Extract:
Question 1 of 5
The nurse teaches a patient to self-administer his insulin. How can the nurse best evaluate whether the patient understands the instruction?
Correct Answer: D
Rationale: Observing the patient perform insulin administration confirms correct technique and understanding, allowing immediate correction of errors. Feelings, repeating information, or listing steps are less direct assessments.
Question 2 of 5
If injection sites are not rotated regularly, the patient with diabetes mellitus may suffer from which of the following?
Correct Answer: A
Rationale: Lipodystrophy refers to a localized loss of fat tissue or a change in the distribution of fat tissue due to repeated injections at the same site. In patients with diabetes mellitus, injecting insulin into the same site repeatedly can lead to lipodystrophy, affecting insulin absorption and glycaemic control. Petechiae are small, red or purple spots due to bleeding under the skin, not typically related to injection sites. Hematoma is a collection of blood from vessel puncture, not a chronic injection issue. Pustules are pus-filled lesions usually from infection, not injection site repetition.
Question 3 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 4 of 5
A nurse is preparing to administer haloperidol 5 mg IM to a client. Available is haloperidol 50 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth/whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: 0.1
Rationale:
To calculate the volume of haloperidol to administer, use the formula: Volume (mL) = Dose (mg) ÷ Concentration (mg/mL). Given a dose of 5 mg and a concentration of 50 mg/mL, Volume = 5 ÷ 50 = 0.1 mL. The answer is rounded to the nearest tenth as instructed.
Question 5 of 5
Which of the following common habit of patients may cause microbes to repopulate and re-establish an infection?
Correct Answer: B
Rationale: Stopping antibiotics prematurely allows surviving microbes to multiply, leading to infection recurrence or resistance. Prophylactic OTC use, switching therapies, or increasing doses are less likely to directly cause repopulation if managed appropriately.