How many mg of phenobarbital will a patient receive per day for the following prescription? Rx Phenobarbital 1/2 gr Dispense 60 tabs Sig: 1 tab PO BID
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Order: Phenobarbital 320 mg. Available is 30 mg/tablet. How many tablets will the nurse administer?
Suman K.
In 1999 a drug overdose incident occurred when a prescription that called for a patient to receive 0.5 grain of the powerful sedative phenobarbital each day was misread, and the patient was given 0.5 gram of the drug. Actually, four intravenous injections of 130 mg each were administered each day for 3 days. How many times as much phenobarbital was administered with respect to the prescribed amount? $(1 \text { grain }=64.79891 \mathrm{mg}$.)
The order is for phenobarbital 45 mg by mouth. You have on hand a bottle of phenobarbital 15 mg tablets. How many tablets will you give?
Supreeta N.
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