Page 11 - Referance Guide For Pharmaceutical Calculations (Naplex, Fpgee and Ptce)

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22. Calculate the weight of 500 cc of acid. c. 0.43 mg
[density of acid = 2.5 gm/cc] d. 1.56 mg

a. 1000 gm 28. How many 975 mg tablets of aspirin are
b. 1250 gm required to prepare 100 tablets each weighing 1
c. 500 gm grain?
d. 200 gm
a. 7 tablets
23. Find out the ratio of ionized to unionized b. 10 tablets
species of drugs at pH = 7. [pKa = 5] c. 5 tablets
d. 3 tablets
a. 10
b. 1 29. If 3 capsules each weighing 150mg
c. 100 Clindamycin are added to 150cc, 1% Cleocin topical
d. 1000 solution, what is the % of Clindamycin in the final
mixture?
24. If the pH of the solution is 3, what is the
+
concentration of H3O in gm ion /L? a. 1.5%
b. 1.3%
a. 0.01 gm-ion/L c. 1.1%
3
b. 1 x 10 gm-ion/L d. 0.9%
c. 0.05 gm-ion/L
-3
d. 10 gm-ion/L 30. The adult dose of a drug is 500 mg. What is
the dose for a 2 year old child? [Use young rule]
25. What is the pH of a solution having a ratio
of ionized to unionized species of drugs of a. 71.42 mg
-6
1 x 10 ? [PKa = 7] b. 101.53 mg
c. 25.46 mg
a. 2 d. 31.18 mg
b. 5
c. 3 31. The adult dose of a drug is 750 mg, what is
d. 1 the dose for child weighing 20 lbs?

26. How many 500 mg tablets of erythromycin a. 100 mg
are required to prepare 240cc, 2% solution of b. 250 mg
erythromycin? c. 500 mg
d. 425 mg
a. 3
b. 5 32. If a dropper is calibrated to deliver 325 mg
c. 6 of iron sulfate in 0.6 cc and an adult dose of drug is
d. 10 325 mg, what is the dose of a drug in cc for a 15
month old infant?
27. How many milligrams are equal to 1/150
grains? a. 1.2 cc
b. 0.3 cc
a. 0.65 mg c. 0.06 cc
b. 1.21 mg d. 0.01 cc

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