Uploaded by B. Young

Dosage Calculations (Notes)

Example:
Ordered: Synthroid 0.075 mg p.o. daily
On hand: Synthroid tablets 50 mcg (0.05 mg)
How many tablets will you give? ________
How many mcg? ________
Example:
Ordered: Dexamethasone 1.5 mg IV stat
On hand: Dexamethasone Sodium 4 mg/mL
How many mL will you give? ________
Example:
Ordered: Straterra 0.1 g p.o. daily
On hand: Straterra 100 mg tab
How many mg will you give? ________
How many tablets will you give? ________
Example:
The MD orders 20 mg/kg of drug. Your pt. weighs 235 lbs.
How many mg will the dosage be?
Example:
A dehydrated pt. is to increase his daily fluid intake by 25% each day. Today
his total fluid intake was 1250 mL. What would be his fluid intake goal for
tomorrow? ROUND ANSWER TO THE NEAREST MILLITER.
Example:
A pt. is to have his wound irrigated with a 1:5 solution of
betadine and sterile water. If the betadine comes supplied in
a 5 mL container, how much sterile water would you use to
dilute the drug with mixing the solution?
Example:
Refer to this drug label. If the doctor orders 0.125 mg qid x 3 days,
how many total grams of drug will the pt. have received by the end
of the 3rd day?
Example:
Refer to this drug label. If the doctor orders 275 mg, how
many mL will you draw up?