ATI RN
Pharmacology ATI Quizlet Questions
Question 1 of 5
A client is prescribed levothyroxine (Synthroid) for hypothyroidism. When is the best time for the nurse to instruct the client to take this medication?
Correct Answer: C
Rationale: Levothyroxine replaces thyroid hormone, requiring optimal absorption for efficacy. Taking it on an empty stomach in the morning avoids interference from food (e.g., calcium, iron), which reduces uptake, ensuring consistent T4 levels. With breakfast or dinner , absorption drops due to dietary interactions, risking subtherapeutic effects. At bedtime is viable but less ideal if food was recent, and morning aligns with circadian thyroid function. This timing leverages levothyroxine's pharmacokinetics'long half-life but sensitivity to gut contents'maximizing bioavailability. Instructing this prevents treatment failure in hypothyroidism, where precise dosing matters, making C the best time for administration and client education.
Question 2 of 5
What is a side effect for Phenytoin?
Correct Answer: D
Rationale: Phenytoin is an antiepileptic medication that is used to control seizures. One of the common side effects of phenytoin is the development of tremors, which are involuntary shaking movements of the body. Patients taking phenytoin may experience tremors as a result of the medication's effects on the central nervous system. It is important for healthcare providers to monitor patients taking phenytoin for the development of tremors and manage them accordingly.
Question 3 of 5
The student nurse asks the nursing instructor why he needs to take anatomy and physiology, as well as microbiology, when he only wants to learn about pharmacology. What is the best response by the instructor?
Correct Answer: C
Rationale: Anatomy, physiology, and microbiology underpin pharmacology, enabling nurses to grasp drug actions and patient responses, enhancing care through informed medication use. As an outgrowth oversimplifies their integration. Curriculum mandates explain requirements, not value. Understanding is key, but applying it to care-like knowing antibiotic targets or drug effects on organs-grounds pharmacology in practice, making it the best rationale.
Question 4 of 5
A 43-year-old woman with a history of hypertension drinks one to two cups of coffee per day. She has been doing this for 3 months. As a result of her continued behavior, which of the following effects of coffee is most likely for her?
Correct Answer: C
Rationale: Daily coffee (caffeine) for 3 months likely leads to tolerance . Regular use reduces adenosine blockade's stimulant effect. Fatigue decrease and alertness wane with tolerance. Tremors and withdrawal (E) need higher doses or cessation. Tolerance fits her chronic intake.
Question 5 of 5
A student nurse was asked by the nurse instructor to explain the procedure for the administration of erythromycin ointment to the eyes of the newborn. Which of the following statements made by the student indicates a need for further research?
Correct Answer: D
Rationale: After administering erythromycin ointment to the eyes of the newborn, there is no need to flush the eyes. The ointment is meant to be left in the eyes to provide protection against eye infections that can be acquired during birth. Flushing the eyes after instilling the ointment may reduce its effectiveness and is not part of the standard procedure. The ointment should be applied directly to the conjunctival sacs without rinsing or flushing the eyes.