ATI RN
Central Nervous System Stimulants and Related Drugs NCLEX Style Questions Questions
Question 1 of 5
The segmental level of spinal anesthesia depends on
Correct Answer: D
Rationale: Spinal anesthesia level is influenced by multiple factors including drug volume gravity and patient posture.
Question 2 of 5
Blockade of which of the following pairs of receptors likely mediated the adverse effect of olanzapine in the 37-year-old woman with a schizoaffective disorder?
Correct Answer: B
Rationale: The most likely receptors mediating the adverse effect of olanzapine in the 37-year-old woman are GABAergic and muscarinic receptors. Olanzapine, an atypical antipsychotic, can have side effects such as acute psychotic states and aggression, which may be due to its interaction with these receptors. Blocking GABAergic receptors can lead to disinhibition and agitation, while muscarinic receptor blockade can cause cognitive impairment and confusion, both of which could contribute to the patient's acute psychotic state and aggressive behavior.
Question 3 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 4 of 5
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.
Question 5 of 5
Digoxin affords the following benefit(s) in CHF
Correct Answer: D
Rationale: Digoxin improves symptoms but does not prolong survival in CHF.