ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 5
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 2 of 5
Which of the recently introduced antiepileptics is useful in absence seizure?
Correct Answer: A
Rationale: Newer antiepileptic drugs like ethosuximide and valproate are effective in treating absence seizures which are generalized brief and involve loss of consciousness.
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
A 7-year-old boy is brought to the emergency department by his parents after being stung by a bee. The parents say that he is allergic to bee stings, and the patient is having great difficulty breathing. Epinephrine is administered immediately. His symptoms improve as molecules of epinephrine bind to β\(_2\)-receptors in bronchial smooth muscle. Which of the following describes a feature of β\(_2\)-receptors?
Correct Answer: A
Rationale: β\(_2\)-adrenergic receptors are G-protein-coupled receptors that have seven transmembrane domains, which is a characteristic feature of this receptor family.
Question 5 of 5
Following agent is generally used in allergic rhinitis
Correct Answer: D
Rationale: All of these are corticosteroids commonly used for allergic rhinitis due to their anti-inflammatory effects.