Pharmacy Tech Calculations Practice Exam: Questions &
Answers
You are filling a prescription that reads: Amoxilillin 12.5 mg/5ml, Sig 1 tsp t.i.d. Dispense 150 ml. How
many milliliters should the patient take each day? - ANSWER:15 ml
You are filling a prescription that reads: EES 200, Sig 1 tsp t.i.d. Dispense 150 ml. How many days should
this prescription last? - ANSWER:10 days
A compounded prescription calls for 600 gm of white perolatum. How many 1 lb jars should you obtain
so there is enough to prepare this prescription? - ANSWER:2 jars
Each tablet of Tylenol #3 has 30 mg of codeine. How many grains of codeine are in each tablet of Tylenol
#3? - ANSWER:1/2 grain
One form of influenza vaccine, the Live Attenuated Intranasal Vaccine, must be stored at -15 degrees C.
What is this temperature in degrees F? - ANSWER:5 degrees F
The lead pharmacy technician must reorder billing forms when 80% of the case has been used. A full
case of billing forms contains 20 packages of forms. How many packages of forms should be remaining in
the case when it's time to reorder? - ANSWER:4 packages
If reconstituting a liquid antibiotic, 90 ml of distilled water should be used. If 1/3 of the water should be
added first to moisten the powder, how much water should be added to moisten the powder? -
ANSWER:30 ml
How many capsules of clindamycin hydrochloride should be used to prepare 30 ml of the following
preparation, if each capsule contains 150mg of clindamycin hydrochloride?
clindamycin hydrochloride 600 mg
70% isopropyl alcohol qs ad 60 ml - ANSWER:2 capsules
A prescription is written for ibuprofen 10% cream. How much ibuprofen is needed to make 20gm of the
cream? - ANSWER:2 gm
You are entering a prescription for an albuterol inhaler that delivers 90 mcg per actuation. If each
container delivers 200 actuations and each dose is two actuations, how many mg are delivered in each
dose? - ANSWER:0.18
What is the days supply for a Z-Pak that contains six azithromycin 250 mg tablets, with directions of 500
mg on the first day, followed by 250 mg once daily until gone? - ANSWER:5
What is the da's supply for metronidazole vaginal gel 70 g, Sig 5 g twice daily? - ANSWER:7 days
What is the days supply for Humulin N insulin 20 ml, if the dose is 40 U daily? - ANSWER:50 days
, How much change should be given to a patient who gives you $50.00 to pay for 3 prescriptions if the
patient's prescription plan has a $10 copay? - ANSWER:$20.00
What is the gross profit for a prescription if the selling price is $73.14, the acquisition cost is $52.10, and
the AWP is $65.12? - ANSWER:$21.04
A prescription has been written for Prevacid 30 mg #100, sig i cap qd, 2 refills; however, the patient's
insurance benefit has a 34-day supply limit. If the original prescription is filled for 34 capsules, how many
refills of 34 would be available? - ANSWER:7 refills of 34
You are preparing a prescription for Synthroid 0.1 mg tablets. How many micrograms are in each tablet?
- ANSWER:100 mcg
You are entering a prescription for timolol 0.25% ophthalmic solution 5 ml, Sig i gtt o.u. twice daily. How
many days should this bottle last if the dropper delivers 20 drops of timolol 0.25% ophthalmic solutions
per ml? - ANSWER:25 days
The dose of a drug is 250 micrograms per kg of body weight. What dose should be given to a child that
weighs 55 lbs? - ANSWER:6.25 mg
A physician has ordered 15ml of Brand X Antacid Suspension to be taken four times daily. How many
days will a 12 oz. bottle last? - ANSWER:6 days
How many mcg of digoxin are in 0.4 ml of digoxin solution if the strength of the digoxin solution is 50
mcg per ml? - ANSWER:20 mcg
You are filing a prescription for gentamicin 80 mg. How much gentamicin solution should be measured
from a 2 ml vial of gentamicin 40 mg/ml? - ANSWER:2 ml
45 units of Humulin R insulin are to be added to a TPN bag. How much Humulin R (U-100) is needed? -
ANSWER:0.45 ml
How much potassium chloride solution (2 mEq/ml) should be added to a 1 liter IV bat if 25 mEq of
potassium chloride is needed? - ANSWER:12.5 ml
How much sodium chloride is in 25 ml of normal saline? - ANSWER:225 mg
A drug is in a vial that contains 500 mg of the drug in 2 ml of solution. What is the percent strength of
this drug? - ANSWER:25%
You have dissolved 20g of drug in 500 ml of solution. What is the percent strength of the resulting
solution? - ANSWER:4%
How many capsules are needed to prepare 30 ml of 1% clindamycin hydrochloride solution if each
capsule contains 150 mg of clindamycin hydrochloride? - ANSWER:2 capsules
How much 1% lidocaine is needed to fill an order for 30 mg of lildocaine? - ANSWER:3 ml
What is the percent strength of a 1:100 solution? - ANSWER:1%
How much gentian violet is needed to prepare 100 ml of a 1:10,000 solution of gentian violet? -
ANSWER:10 mg
Answers
You are filling a prescription that reads: Amoxilillin 12.5 mg/5ml, Sig 1 tsp t.i.d. Dispense 150 ml. How
many milliliters should the patient take each day? - ANSWER:15 ml
You are filling a prescription that reads: EES 200, Sig 1 tsp t.i.d. Dispense 150 ml. How many days should
this prescription last? - ANSWER:10 days
A compounded prescription calls for 600 gm of white perolatum. How many 1 lb jars should you obtain
so there is enough to prepare this prescription? - ANSWER:2 jars
Each tablet of Tylenol #3 has 30 mg of codeine. How many grains of codeine are in each tablet of Tylenol
#3? - ANSWER:1/2 grain
One form of influenza vaccine, the Live Attenuated Intranasal Vaccine, must be stored at -15 degrees C.
What is this temperature in degrees F? - ANSWER:5 degrees F
The lead pharmacy technician must reorder billing forms when 80% of the case has been used. A full
case of billing forms contains 20 packages of forms. How many packages of forms should be remaining in
the case when it's time to reorder? - ANSWER:4 packages
If reconstituting a liquid antibiotic, 90 ml of distilled water should be used. If 1/3 of the water should be
added first to moisten the powder, how much water should be added to moisten the powder? -
ANSWER:30 ml
How many capsules of clindamycin hydrochloride should be used to prepare 30 ml of the following
preparation, if each capsule contains 150mg of clindamycin hydrochloride?
clindamycin hydrochloride 600 mg
70% isopropyl alcohol qs ad 60 ml - ANSWER:2 capsules
A prescription is written for ibuprofen 10% cream. How much ibuprofen is needed to make 20gm of the
cream? - ANSWER:2 gm
You are entering a prescription for an albuterol inhaler that delivers 90 mcg per actuation. If each
container delivers 200 actuations and each dose is two actuations, how many mg are delivered in each
dose? - ANSWER:0.18
What is the days supply for a Z-Pak that contains six azithromycin 250 mg tablets, with directions of 500
mg on the first day, followed by 250 mg once daily until gone? - ANSWER:5
What is the da's supply for metronidazole vaginal gel 70 g, Sig 5 g twice daily? - ANSWER:7 days
What is the days supply for Humulin N insulin 20 ml, if the dose is 40 U daily? - ANSWER:50 days
, How much change should be given to a patient who gives you $50.00 to pay for 3 prescriptions if the
patient's prescription plan has a $10 copay? - ANSWER:$20.00
What is the gross profit for a prescription if the selling price is $73.14, the acquisition cost is $52.10, and
the AWP is $65.12? - ANSWER:$21.04
A prescription has been written for Prevacid 30 mg #100, sig i cap qd, 2 refills; however, the patient's
insurance benefit has a 34-day supply limit. If the original prescription is filled for 34 capsules, how many
refills of 34 would be available? - ANSWER:7 refills of 34
You are preparing a prescription for Synthroid 0.1 mg tablets. How many micrograms are in each tablet?
- ANSWER:100 mcg
You are entering a prescription for timolol 0.25% ophthalmic solution 5 ml, Sig i gtt o.u. twice daily. How
many days should this bottle last if the dropper delivers 20 drops of timolol 0.25% ophthalmic solutions
per ml? - ANSWER:25 days
The dose of a drug is 250 micrograms per kg of body weight. What dose should be given to a child that
weighs 55 lbs? - ANSWER:6.25 mg
A physician has ordered 15ml of Brand X Antacid Suspension to be taken four times daily. How many
days will a 12 oz. bottle last? - ANSWER:6 days
How many mcg of digoxin are in 0.4 ml of digoxin solution if the strength of the digoxin solution is 50
mcg per ml? - ANSWER:20 mcg
You are filing a prescription for gentamicin 80 mg. How much gentamicin solution should be measured
from a 2 ml vial of gentamicin 40 mg/ml? - ANSWER:2 ml
45 units of Humulin R insulin are to be added to a TPN bag. How much Humulin R (U-100) is needed? -
ANSWER:0.45 ml
How much potassium chloride solution (2 mEq/ml) should be added to a 1 liter IV bat if 25 mEq of
potassium chloride is needed? - ANSWER:12.5 ml
How much sodium chloride is in 25 ml of normal saline? - ANSWER:225 mg
A drug is in a vial that contains 500 mg of the drug in 2 ml of solution. What is the percent strength of
this drug? - ANSWER:25%
You have dissolved 20g of drug in 500 ml of solution. What is the percent strength of the resulting
solution? - ANSWER:4%
How many capsules are needed to prepare 30 ml of 1% clindamycin hydrochloride solution if each
capsule contains 150 mg of clindamycin hydrochloride? - ANSWER:2 capsules
How much 1% lidocaine is needed to fill an order for 30 mg of lildocaine? - ANSWER:3 ml
What is the percent strength of a 1:100 solution? - ANSWER:1%
How much gentian violet is needed to prepare 100 ml of a 1:10,000 solution of gentian violet? -
ANSWER:10 mg
