ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 9
An action common to most general anesthetics
Correct Answer: C
Rationale: Many general anesthetics inhibit glutamate (excitatory neurotransmitter) to produce sedation and anesthesia.
Question 2 of 9
Phenytoin sodium
Correct Answer: A
Rationale: Phenytoin is used in arrhythmias to suppress ventricular automaticity without significantly affecting AV conduction.
Question 3 of 9
A woman enters your clinic with an enlarged thyroid and you suspect simple adenomatous goiter. Which of the following would be the best treatment if the laboratory results shows low levels of free T3 and T4?
Correct Answer: D
Rationale: Levothyroxine (choice D) treats hypothyroid goiter (low T3/T4) by replacing thyroid hormone, shrinking the gland. TSH infusion (choice A) worsens it, Propranolol (choice B) manages hyperthyroid symptoms, Propylthiouracil (choice C) reduces hormone in hyperthyroidism. Levothyroxine is appropriate.
Question 4 of 9
Which of the following antipsychotics (in excess dose) is responsible for cardiac arrhythmias?
Correct Answer: C
Rationale: Thioridazine has been associated with QT prolongation and a higher risk of cardiac arrhythmias.
Question 5 of 9
Following analgesics are frequently employed as supplemental drugs during general anesthesia.
Correct Answer: D
Rationale: Opioids like fentanyl meperidine and alfentanil are commonly used for analgesia in anesthesia.
Question 6 of 9
Select the anticholinesterase drug that is being used to afford symptomatic improvement in Alzheimer's disease
Correct Answer: B
Rationale: Tacrine was one of the first acetylcholinesterase inhibitors used to treat Alzheimer's disease.
Question 7 of 9
A newborn with transposition of great arteries needed to keep the ductus arteriosus open. The drug used was
Correct Answer: D
Rationale: Misoprostol, a prostaglandin E1 analog, helps maintain ductus arteriosus patency.
Question 8 of 9
Which of the following signs and symptoms did the girl most likely experience just after smoking?
Correct Answer: B
Rationale: The symptoms described in the scenario, such as elevated mood, rapid speech, muscle twitching, and dilated pupils, are consistent with the effects of marijuana use. Increased heart rate is a common physiological response to smoking marijuana due to the drug's impact on the cardiovascular system. Additionally, euphoria and uncontrollable laughter are typical psychological effects of marijuana use, further supporting the choice of increased heart rate as the correct answer.
Question 9 of 9
A 21-year-old male has recently begun pimozide therapy for Tourette's disorder. His parents bring him to the emergency department. They describe that he has been having “different appearing tics†than before, such as prolonged contraction of the facial muscles. While being examined, he experiences opsichotomus (type of extrapyramidal spasm of the body in which the head and heels are bent backward and the body is bowed forward). Which of the following drugs would be beneficial in reducing these symptoms?
Correct Answer: A
Rationale: Benztropine, an anticholinergic agent, is used to treat extrapyramidal symptoms like dystonia caused by antipsychotic medications.