NUR 241 Chapter 13 CNS Stimulants & Related Drugs Evolve Questions and Answers
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Course
NUR 241
Institution
NUR 241
The nurse is providing care for a neonate diagnosed with apnea of prematurity. The prescription by the health care provider is for caffeine citrate intravenously 5 mg/kg once daily. The infant's weight is 5.4 lb. What is the correct dosage to administer to the patient?
_________ Answer: 12.3mg Rat...
NUR 241 Chapter 13 CNS Stimulants &
Related Drugs Evolve Questions and
Answers
The nurse is providing care for a neonate diagnosed with apnea of prematurity. The
prescription by the health care provider is for caffeine citrate intravenously 5 mg/kg once
daily. The infant's weight is 5.4 lb. What is the correct dosage to administer to the
patient?
_________ ✅Answer: 12.3mg
Rational: 5.4 lb ÷ 2.2 = 2.45 kg × 5 mg/kg = 12.27 mg. Because doses are rounded to
tenths for neonates, the answer is 12.3 mg.
A child is prescribed methylphenidate (Ritalin) to treat attention deficit hyperactivity
disorder (ADHD). The parent expresses concern about using a controlled substance to
treat ADHD and asks the nurse about using a noncontrolled substance. The nurse
knows ADHD can be treated with which noncontrolled substance?
A. Methylphenidate (Concerta)
B. Atomoxetine (Strattera)
C. Amphetamine aspartate (Adderall)
D. Dextroamphetamine sulfate (Dexedrine) ✅Answer: B
Rational: Atomoxetine (Strattera) is not a controlled substance because it lacks drug
addictive (psychological dependence) properties, unlike amphetamines and phenidates.
A patient diagnosed with narcolepsy is prescribed a central nervous system (CNS)
stimulant. Which statement best describes the action of CNS stimulants?
A. CNS stimulants activate cyclic adenosine monophosphate.
B. CNS stimulants block or reduce the activity of inhibitory neurons.
C. CNS stimulants increase release of and block reuptake of neurotransmitters.
D. CNS stimulants decrease the production of excitatory neurotransmitters. ✅Answer:
C
Rational: CNS stimulation occurs when the amount of neurotransmitters being released
and the duration of action of excitatory neurotransmitters are increased.
The nurse explains to a patient that using caffeine may exacerbate which health
condition?
A. Cardiac dysrhythmias
B. Constipation
C. Heart block
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