ATI RN
ATI Pharmacology Practice Exam B Questions
Question 1 of 5
The patient is receiving lithium (Eskalith) and asks the nurse why he has to have blood drawn so often. What is the best response by the nurse?
Correct Answer: D
Rationale: Lithium's narrow therapeutic range (0.6-1.2 mEq/L) requires frequent blood draws to ensure levels stay safe and effective, preventing toxicity (e.g., tremors) or subtherapeutic dosing. Side effects are monitored clinically, not just by blood. Effectiveness and response tie to levels, but ‘correct amount' is precise, addressing the patient's query directly about monitoring's purpose.
Question 2 of 5
The client has osteomalacia, and the physician has ordered a treatment to restore calcium balance. What will the nurse plan to administer to the client?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
An 18-year-old woman presents to her primary care physician after experiencing a one-sided headache for the fourth time in the last 2 years. Her headaches have all been similar in nature. She says the pain is worst right behind her eye and that she feels nauseous and cannot stand bright lights or loud noises while she is having a headache. The physician prescribes sumatriptan. What is the mechanism of action of this medication?
Correct Answer: B
Rationale: Migraine symptoms (unilateral pain, photophobia, nausea) respond to sumatriptan, a 5-HT1B/1D agonist. Option , blocking serotonin-mediated nociceptive signaling, is correct-sumatriptan constricts cranial vessels and inhibits trigeminal pain pathways. Option , COX blockade, is NSAIDs' mechanism. Option , prostaglandin synthesis, is similar. Options and (E), opioid receptor stimulation, are unrelated. Sumatriptan's serotonin action targets migraine-specific pathophysiology, relieving this patient's symptoms.
Question 4 of 5
A 31-year-old woman smoker expresses a desire to quit smoking. She has a 10 pack-year history of smoking but no other health issues. She wants to try varenicline, a drug she recently heard about, to help her quit. Which of the following side effects of varenicline is she most likely to encounter?
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
A 13-year-old boy with moderate asthma presents to the clinic for follow-up. His symptoms appear to be better controlled since adding salmeterol to his regimen. He has had to use his rescue inhaler once over the past 2 weeks during exertion. His breathing at night has improved as well. How does salmeterol exhibit its beneficial effects for asthma?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.