PTCB/NHA Pharmacy Technician Calculations
Exam
This document provides comprehensive preparation for the Pharmacy Technician
Calculations Examination, featuring actual exam questions with complete solutions and
verified answers for the 2025/2026 certification cycle. It covers dosage calculations,
compounding measurements, IV flow rates, concentration conversions, and business
mathematics according to Pharmacy Technician Certification Board and National
Healthcareer Association standards. This essential tool offers authentic exam simulation
and systematic content review to ensure mastery of pharmacy calculations and success
on your certification assessment.
What volume of a 2% erythromycin solution can be made from 15g of
erythromycin powder? - ,,,answer,,,..750 ml
How many ml of 95% of ethyl alcohol should be added to sterile water for
injection to make 1/2 liter of a 40% ethyl alcohol solution? -
,,,answer,,,..210 ml
The recommended dose of drug XYZ is 10 mg/kg/day. What is the total
daily drug XYZ for a 48.4-lb patient? - ,,,answer,,,..220 mg
What volume of Digoxin 0.5 mg/2 ml injection will deliver a dose of 0.125
mg. - ,,,answer,,,..1/2 ml
The initial dose of aminophylline for a non-smoking adult is 0.7 mg/kg/hr
for 12 hours. How many ml of an IV solution containing 400 mg per 100 ml
would be required for a 154 lbs male over this 12 hour period? -
,,,answer,,,..147 ml
,What would be the selling price of Hydrocortisone cream 1% 30 gm if it
costs $7.00 and you want a 50% mark up? - ,,,answer,,,..$10.50
An order reads "Acetaminophen 325 mg Pr q4h prn". What dosage form
should be dispensed? - ,,,answer,,,..Suppositories
Consider the following Rx: Dilantin 100 mg #180 Sig:1 cap po tid refill x3 If
the patient pays a $7.00 copay for a 30 day supply, what quantity should
be dispensed for the patient to pay no more than the $7.00 copay? -
,,,answer,,,..90 caps
Determine the flow rate of an IVPB containing 120 ml of gentamicin, if the
solution is to be infused over a 1 hour period and the administration set is
calibrated to deliver 10 drops per ml. - ,,,answer,,,..20 gtts/min
The doctor writes a prescription for Na Heparin 20,000 units in 500 ml
N.S. Infuse over 8 hours. What is the flow rate in ml/hr? - ,,,answer,,,..63
ml in 1 hr
You receive a prescription for Amoxicillin suspension 125 mg/5 ml, 1.5 tsp
TID x 10 days. The appropriate quantity to dispense would be: -
,,,answer,,,..225 ml
Cefzil suspension is available in a concentration of 125 mg/5 ml. How
many ml are required for a 500 mg dose? - ,,,answer,,,..20 ml
1/2 tablespoons is equivalent to how many ml? - ,,,answer,,,..7.5 ml
The approximate size container for the dispensing of 180 ml of liquid
medication would be? - ,,,answer,,,..6 ounces
,You receive an order for Ceclor suspension (125 mg/5 ml) with a dose of
250 mg TID for 10 days. How many milliliters do you need to dispense? -
,,,answer,,,..300 ml
A pharmacy wants to mark up a product by thirty percent. How much
would an item cost with mark up, if it's original cost was $4.50? -
,,,answer,,,..$5.85
To prepare 400 ml of a 40% (w/v) solution of sodium bicarbonate, how
many grams of solute are needed? - ,,,answer,,,..16o gm
What is the Latin abbreviation for "after meals"? - ,,,answer,,,..pc
You receive an order to prepare 250 mg of dobutamine in a 100-ml pump
cassette with NS as the diluent. Dobutamine is available as a 12.5-mg/ml
solution. How many milliliters of dobutamine do you need to prepare this
prescription? - ,,,answer,,,..20 ml
Using Clark's Rule, what is the dose of drug for an eight-year-old boy
weighing 50 pounds? (The normal adult dose is 300 mg.) -
,,,answer,,,..100 mg
What volume of pediatric digoxin injection 0.1 mg/ml is required for a 50
mcg dose? - ,,,answer,,,..0.5 ml
Thirty-four degrees Celsius (34 degrees C) would be how many degrees
Fahrenheit? - ,,,answer,,,..93.2 degrees F
If 75 gm's of codeine phosphate is dissolved in 3 liters of sterile water,
what is the resultant percentage strength of the solution? -
,,,answer,,,..2.5%
, A compounded prescription required using 10 capsules costing $40.00
per 60 capsules and 120 gm of an ointment base costing $8.00 per pound.
If a $5.00 dispensing fee is included, how much should the patient be
charged? - ,,,answer,,,..$13.77
Cleocin suspension is available in a concentration of 75 mg/5 ml. How
many ml are required for a 300 mg dose? - ,,,answer,,,..2o ml
The markup for a $36.75 vial of antibiotic is 18%. What is the retail price
for this medication? - ,,,answer,,,..$43.37
How much diluent do you need to add to a 4 gm vial to get a concentration
of 250 mg/ml? Disregard the space the powder may occupy. -
,,,answer,,,..16 ml
A solution containing 300 g of solute in 1500 ml of solution, what is the
ratio strength of (w/v)? - ,,,answer,,,..1:05
A pharmacy fills an order for 28 Septra tablets containing 0.08 g of
Trimethoprim each. How much Trimethoprim is dispensed? -
,,,answer,,,..2240 mg
If 15 gallons of distilled water cost $42.00, how much will 4 gallons cost? -
,,,answer,,,..$11.20
Heparin is available in a vial labeled 20,000U/ml. How many ml are
required for a 12,500U dose? - ,,,answer,,,..0.625 ml
How many 30 mg KMNO4 (Potassium Permanganate) tablets are needed
to make the following Solution: KMNO4 1:5000 600 ml. - ,,,answer,,,..4
tablets