ATI RN
ATI RN Pharmacology Online Practice 2019 A Questions
Question 1 of 5
The following inhibits cell wall synthesis, except:
Correct Answer: D
Rationale: Nystatin is an antifungal medication that works by disrupting fungal cell membrane function, specifically targeting ergosterol and causing the formation of pores in the cell membrane, leading to cell death in fungi. It does not inhibit cell wall synthesis, unlike the other options listed.
Question 2 of 5
A patient who has been taking a benzodiazepine as a sleep aid for several months wishes to stop taking the medication. The nurse will suggest that the patient taper the dose gradually to avoid which effect?
Correct Answer: D
Rationale: When a patient has been taking a benzodiazepine for an extended period, abruptly stopping the medication can lead to withdrawal symptoms. These symptoms may include anxiety, irritability, agitation, insomnia, tremors, sweating, and in severe cases, seizures. To avoid these withdrawal effects, the nurse will recommend tapering the dose gradually under medical supervision. This approach allows the body to adjust slowly and reduces the likelihood of experiencing withdrawal symptoms. It is essential to follow a tapering schedule under the guidance of a healthcare provider to ensure a smooth transition off the medication and minimize the risk of withdrawal.
Question 3 of 5
The following inhibits cell wall synthesis, except:
Correct Answer: D
Rationale: Nystatin is an antifungal medication that works by disrupting fungal cell membrane function, specifically targeting ergosterol and causing the formation of pores in the cell membrane, leading to cell death in fungi. It does not inhibit cell wall synthesis, unlike the other options listed.
Question 4 of 5
The patient has been prescribed oxymetazoline (Afrin). What medication information should the nurse provide?
Correct Answer: D
Rationale: Oxymetazoline acts fast; adherence prevents rebound . Days is wrong. D ensures safe use, making it key.
Question 5 of 5
A 52-year-old overweight man steamroller operator comes to you complaining of itchy, watery eyes and runny nose in the springtime. He says that he has had this problem for as long as he can remember but does not like going to doctors. His wife finally convinced him to come today see what you might be able to do for him. You prescribe cetirizine. Which of the following describes cetirizine's mechanism of action?
Correct Answer: B
Rationale: Cetirizine treats seasonal allergies (itchy eyes, runny nose) by inhibiting H1 receptors . This blocks histamine, relieving symptoms without sedation, ideal for his job. β2 inhibition or stimulation affects airways. α1 stimulation vasoconstricts. H1 inhibition (E) isn't stimulatory. Cetirizine's action ensures efficacy and safety.