A preceptor is educating a new graduate nurse about barbiturates. The preceptor states, "Barbiturates were once widely used but are now rarely prescribed." Which follow-up statement by the preceptor best explains why barbiturates are not as commonly used today?
"Barbiturates carry a higher risk of dependence and overdose compared to other sedative-hypnotics."
"Barbiturates are more expensive than newer medications like benzodiazepines, which limits their use."
"Barbiturates have been replaced because they are less effective than over-the-counter sleep aids."
"Barbiturates are safer for long-term use compared to other sedatives, but they have limited availability."
The Correct Answer is A
A. "Barbiturates carry a higher risk of dependence and overdose compared to other sedative-hypnotics.": Barbiturates have a narrow therapeutic index, and overdose can lead to fatal respiratory depression. Their high abuse potential and severe withdrawal symptoms make them less favorable than safer alternatives like benzodiazepines.
B. "Barbiturates are more expensive than newer medications like benzodiazepines, which limits their use.": Cost is not the primary reason for their reduced use. In fact, many barbiturates are inexpensive. Their safety profile and high risk of fatal overdose are the major concerns.
C. "Barbiturates have been replaced because they are less effective than over-the-counter sleep aids.": Barbiturates are actually very potent sedative-hypnotics. However, their risks outweigh their benefits. OTC sleep aids are less effective but considered safer for short-term use.
D. "Barbiturates are safer for long-term use compared to other sedatives, but they have limited availability.": Barbiturates are not safer for long-term use. They are associated with tolerance, dependence, cognitive impairment, and severe withdrawal, which is why their use has been largely replaced.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. 100 mg:. The label clearly states that each capsule contains 25 mg of Indomethacin. There is no indication that multiple capsules are taken at once unless prescribed, so 100 mg is incorrect for a single capsule dosage.
B. 125 mg: This is not the indicated dose per capsule.
C. 25 mg: The label clearly indicates that each capsule contains 25 mg of Indomethacin. This is the correct dosage per capsule. Indomethacin is often available in 25 mg increments for safe titration and individualized dosing based on patient need.
D. 75 mg: While 75 mg is a common dosage form for some extended-release Indomethacin preparations, this particular label shows 25 mg immediate-release capsules. There is no mention of 75 mg on the drug label in this case.
Correct Answer is ["10"]
Explanation
Desired dose = 20 mg
Available concentration = 10 mg per 5 mL
- Calculate the concentration in mg/mL:
Concentration (mg/mL) = Available dose / Available volume
= 10 mg / 5 mL
= 2 mg/mL
Volume to administer = Desired dose / Available concentration
= 20 mg / 2 mg/mL
= 10 mL
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