ATI RN
Introduction to Pharmacology ATI Quizlet Questions
Question 1 of 5
Which drug category can be used for treating anxiety?
Correct Answer: C
Rationale: Seizure drugs (e.g., benzodiazepines like clonazepam) treat anxiety via GABA enhancement, calming overactivity, per pharmacology. Antitussives suppress cough, anticoagulants thin blood, and antibiotics fight infection-none target anxiety. Seizure drugs' anxiolytic use is established, fitting the need.
Question 2 of 5
A 48-year-old man with a known history of asthma takes daily theophylline. He is found unconscious in his bathroom with an open bottle of theophylline that is now empty nearby. He is found by EMS to be apneic and pulseless. What is the most likely cause of death in this patient?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
A 45-year-old woman has just received a kidney transplant. She is placed on several immunosuppressants to prophylactically prevent her body from rejecting the donor organ. Which of the following immunosuppressants interferes with T-cell activation by inhibition of mTOR?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 4 of 5
What is the rationale for combining levodopa with carbidopa?
Correct Answer: B
Rationale: Levodopa treats Parkinson's by crossing the blood-brain barrier and converting to dopamine, but peripheral metabolism by dopa decarboxylase reduces its availability and causes side effects like nausea. Carbidopa, a peripheral dopa decarboxylase inhibitor, doesn't cross into the CNS, so it prevents levodopa breakdown outside the brain, increasing its CNS entry and efficacy. It doesn't stimulate dopamine receptors—levodopa's metabolite does that. Absorption isn't directly enhanced; bioavailability improves due to less peripheral loss. Peripheral dopamine production decreases with carbidopa, not increases, reducing side effects. COMT inhibition (e.g., entacapone) is a separate strategy. By blocking peripheral conversion, carbidopa ensures more levodopa reaches the brain, optimizing therapy and minimizing adverse effects.
Question 5 of 5
An infant is prescribed nystatin (Mycostatin) for treatment of infant oral candidiasis, or thrush. Which information should the nurse provide to the infant's caregiver in regard to this medication?
Correct Answer: D
Rationale: Nystatin is used to treat oral thrush in infants, a fungal infection often linked to Candida albicans, which can be transmitted between mother and child during breastfeeding. The key instruction for the caregiver is that the breastfeeding mother may also need treatment to prevent reinfection, as Candida can persist on the mother's nipples. This addresses the infection's source comprehensively. Giving medication before feeding may reduce efficacy as milk washes it away too quickly. Water beforehand isn't necessary and could dilute the dose. Using a cotton swab is a technique but not the priority instruction compared to preventing recurrence. Since the correct answer includes multiple options (3, 5), and choice D aligns with the critical need to treat the mother, it's the focus here for its systemic impact on treatment success.