Two nursing students studying pharmacology are discussing the contraindications to the use of barbiturates. Which statement made by one of the students best demonstrates an understanding of the use of barbiturates?
a. "Barbiturates should not be used in patients with a history of delirium."
b. "Barbiturates should not be used in patients with suicidal tendencies."
c. "Barbiturates should not be used in patients with an allergy to benzodiazepines."
d. "Barbiturates should not be used in patients with a history of drowsiness with the use of these agents."
B
Barbiturates have a low therapeutic index; overdose may rapidly lead to death. Because of their toxicity, barbiturates frequently are used as a means of suicide and should not be prescribed to patients with suicidal tendencies.
Barbiturates may be used in patients with a history of delirium.
Barbiturates may be used in patients with a history of allergy to benzodiazepines.
Central nervous system depression and drowsiness may be side effects of barbiturates; therefore, if the drugs have been used previously, these would be expected findings.
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