PHARMACY TECHNICIAN CALCULATIONS EXAM

PHARMACY TECHNICIAN CALCULATIONS EXAM 2024 NEWEST
ACTUAL EXAM COMPLETE 400 QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT ANSWERS) / ALREADY
GRADED A+
express 1:100 as a percent - ANSWER: % = (1/100) X 100====>>1%

How many milligrams of active drug are in 100 ml
of a 1% solution? - ANSWER: 0.01 = (x gm/100ml)
x = 1 gm (1000 mg)

H ow many milliliters of a 5% solution would be
needed to deliver500 mg of active drug? - ANSWER: 0.05 = (0.5 gm / x ml)

x = 10 ml

Calculating Drug Doses & Percentages
To calculate drug dosages, remember one basic
statement:

One gram or ml of drug in 99 ml of diluent will yield a 1%
solution. Therefore, 1 ml of a 1% solution contains .01 gm
(10 mg) of the drug. - ANSWER: • The formula that proves this statement is:

% (in decimals) = amount of solute (gm)/total amount of solution (ml)

Mixing Solutions

• When mixing two solutions to obtain a desired
drug percentage, the following formula is used: - ANSWER: (amount of solute
needed)/(amount of solution desired )=
(concentration of desired solution)/
(concentration of on - hand solution)

Mixing Solutions

• Example

- prepare 5 ml of a 5% solution of acetylcysteine,
using 20% acetylcysteine and normal saline - ANSWER: (x/5) = (5/20)
therefore X = (25/20)

x = 1.25

, To prepare 5 ml of 5% acetylcysteine, mix 1.25 ml of the 20% acetylcysteine with
3.75 ml normal saline.

1. A .3 ml dose of 5% Metaprel contains how many mg metaproterenol? - ANSWER:
% (in decimals) =

(amount of solute (gm))/(total amount of solution (ml)

2. A .5 ml dose of 1:200 Isuprel contains how many mg isproterenol?
First, convert 1:200 to a percentage (in decimal form) - ANSWER: % (in decimals) =
(amount of solute (gm)/total amount of solution (ml))

3. How many ml of 1:200 Proventil would be needed to deliver 5 mg
albuterol? - ANSWER: % (in decimals) =
( amount of solute (gm)/total amount of solution (ml))

4. What is the percentage strength of a solution of Ventolin that
contains 5 mg albuterol per ml? - ANSWER: % (in decimals) =
( amount of solute (gm)/total amount of solution (ml))

5. What is the ratio strength of an epinephrine solution that contains 1 mg
epinephrine per ml? - ANSWER: % (in decimals) =
( amount of solute (gm)/total amount of solution (ml))

1. Prepare 250 ml of 1% NaCl using H2O and 10% NaCl solution. - ANSWER: (amount
of solute needed)/(amount of solution desired )=
(concentration of desired solution)/
(concentration of on - hand solution)

2. Prepare 50 ml of 5% acetylcysteine solution using NS and 20% acetylcysteine -
ANSWER: (amount of solute needed)/(amount of solution desired )=
(concentration of desired solution)/
(concentration of on - hand solution)

3. Prepare 2 L of 20% NaHCO3 solution using H2O and NaHCO3 crystals. - ANSWER:
(amount of solute needed)/(amount of solution desired )=
(concentration of desired solution)/
(concentration of on - hand solution)

4. Prepare 1 L of NS using H2O and NaCl crystals. - ANSWER: (amount of solute
needed)/(amount of solution desired )=
(concentration of desired solution)/
(concentration of on - hand solution)

5. Prepare 1 L of 2% acetic acid using water and vinegar (5%). - ANSWER: (amount of
solute needed)/(amount of solution desired )=
(concentration of desired solution)/