ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 5
A 38-year-old woman presents to the ophthalmologist for a routine eye examination. She is given intraocular pilocarpine. She was supposed to be administered two drops in each to dilate the eyes for the examination. Unfortunately, the eyedrops were administered by a new technician who inadvertently administered 10 drops of pilocarpine in each eye. Which of the following agents should be immediately given to the patient?
Correct Answer: A
Rationale: Atropine, an anticholinergic agent, can counteract the effects of excessive pilocarpine, which is a cholinergic agonist, by blocking muscarinic receptors.
Question 2 of 5
A 34-year-old woman with chronic irritable bowel syndrome with predominance of diarrhea and left lower quadrant pain begins smoking in response to the numerous stresses in her personal and professional life. She smokes one pack per day. She presents to her primary care physician for treatment of her irritable bowel syndrome. The physician expects a change in which of the following symptoms of her irritable bowel syndrome?
Correct Answer: A
Rationale: Nicotine can exacerbate diarrhea in patients with irritable bowel syndrome, particularly those with diarrhea-predominant IBS.
Question 3 of 5
A 59-year-old man with Parkinson's disease begins a course of bromocriptine in hopes of improving his significant symptoms of cogwheel rigidity and bradykinesia. After being on the medication for 6 months, a renal ultrasound is obtained that reveals bilateral hydronephrosis and elevation of his serum creatinine to 2.5 mg/dL. What is the most likely explanation for these findings?
Correct Answer: C
Rationale: Bromocriptine, a dopamine agonist, can cause retroperitoneal fibrosis, leading to ureteral obstruction and hydronephrosis.
Question 4 of 5
Diazoxide is an effective hypotensive, but it is not used long-term because
Correct Answer: D
Rationale: Diazoxide has multiple adverse effects including hyperglycemia fluid retention and hyperuricemia.
Question 5 of 5
Epinephrine HCl has little or no effect on
Correct Answer: A
Rationale: Epinephrine is poorly absorbed through unbroken skin but is effective on mucosal surfaces.