Which factors make meperidine an opioid of choice among nurses and physicians who abuse opioids? (Select all that apply.)
a. Easy access to syringes for administration of the drug
b. Highly effective oral dosing
c. Increased effects on smooth muscle function
d. Less pupillary constriction than other opioids
e. Shorter half-life than other opioids
ANS: B, D
Meperidine is often abused by medical personnel because oral dosing is highly effective, so telltale injection marks are unnecessary. Also, the drug causes less pupillary constriction than other opioids. Access to syringes is not necessary with oral dosing. Meperidine has fewer effects on smooth muscle function, causing less constipation and urinary retention.
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