How frequently are nitroglycerin tablets discarded and prescriptions refilled?c
a. Monthly
b. Every 3 months
c. Every 6 months
d. Yearly
ANS: C
Every 6 months, the nitroglycerin prescription should be refilled and the old tablets safely discarded. Nitroglycerin has a longer shelf life than 1 or 3 months but does not have a shelf life as long as 1 year.
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