NURSING DOSAGE CALCULATIONS
4
Mathematics Tutorial
Show your work.................Remember Units................ NO CALCULATOR
1.
Convert:
a. 0.075 L
=
______________________ mL
b. 276 mcg
=
______________________ mg
c. 27.5 mg
=
______________________ mcg
d. 103.2 g
=
______________________ mg
e. 10.14 g
=
______________________ kg
f. 1.750 mg
=
______________________ mcg
g. 32.5 L
=
______________________ mcL
h. 0.375 mg
=
______________________ mcg
2. Change the abbreviations to the correct term:
a. tid
______________________
b. q4h
______________________
c. mcg
______________________
d. IM
______________________
e. prn
______________________
f. po
______________________
g. stat
______________________
h. ID
______________________
i.
pc
______________________
j.
ad lib
______________________
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NURSING DOSAGE CALCULATIONS
3. In supply, you have a 20 mL vial with a label that reads “Ancef 1g”. Once reconstituted,
the concentration is 350 mg/mL. The doctor has ordered: Ancef 450 mg IV q12h. What
volume of medication do you administer in one dose?
4. The doctor’s order reads: Lanoxin 62.5 mcg po bid. In supply are Lanoxin 0.125 mg
scored tablets. How many tablets do you administer daily?
5. The doctor has ordered: Kanamycin (Kantex) 1 g po q8h x 4 days. Available is Kantex
(kanamychin sulphate) capsules, USP, labelled 500 mg. What volume of medication do
you administer per dose?
6. On hand is Decadron (dexamethasone) 0.25 mg tablets. The doctor’s order reads:
dexamethasone (Decadron) 0.5 mg po tid. What volume do you administer daily?
7. The supply cabinet contains Duricef (cefadroxil monohydrate, usp) labelled 125 mg/5
mL. The doctor has ordered: cefadroxil (Duricef) 0.4 g po q8h. How many milligrams do
you administer daily?
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NURSING DOSAGE CALCULATIONS
8. The doctor’s order reads: cefprozil (Cefzil) 200 mg po q12h. The supply cabinet
contains a 250 mL bottle of Cefzil (cefprozil) for oral suspension 125mg/5 mL. How
many mg do you administer daily?
9. On hand is 250 mL of Amoxil (amoxicillin) or oral suspension labelled 125 mg/5mL once
reconstituted. The doctor has ordered: amoxicillin (Amoxil) 0.375 g po bid. What
volume of medication do you administer daily?
10. The medication cabinet contains 75 mL of Augmentin labelled 250 mg/5 mL. Ordered
is amoxicillin/clavulanate potassium (Augmentin) 0.5 g po q8h. In one day, how many
millilitres do you administer?
11. The doctor has ordered: acetaminophen 650 mg, q6h prn for pain. On hand is
acetaminophen elixir 75 mg/mL. What volume of medication do you administer if
necessary?
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NURSING DOSAGE CALCULATIONS
12. In the supply cabinet is Mycostatin oral suspension 100 000 units per mL. The
doctor’s order reads: mycostatin 250,000 units oral swish and swallow, qid. How many
units do you administer daily?
13. The doctor’s order reads: cefprozil (Cefzil) 100 mg po q12h. On hand is Cefzil
(cefprozil) for oral suspension labelled 125 mg/5 mL. What volume do you administer
per day?
ANSWERS:
1.
j.
a.
b.
c.
d.
e.
f.
g.
h.
75 mL
0.276 mg
27 500 mcg
103 200 mg
0.010 14 kg
1750 mcg
32 500 000 mcL
375 mcg
a.
b.
c.
d.
e.
f.
g.
h.
i.
three times a day
every four hours
microgram
intramuscularly
as necessary
by mouth
immediately
intradermal
after meals
as desired
3. 1.3 mL
4. 1 tablet
5. 2 capsules
6. 6 tablets
2.
7. 1200 mg
8. 400 mg
9. 30 mL
10. 30 mL
11. 8.7 mL
12. 1 000 000 units
13. 8 mL
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