PHARMACY TECH CALCULATIONS QUESTIONS AND ANSWERS 2025
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
,PHARMACY TECH CALCULATIONS QUESTIONS AND ANSWERS 2025
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
, PHARMACY TECH CALCULATIONS QUESTIONS AND ANSWERS 2025
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
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
,PHARMACY TECH CALCULATIONS QUESTIONS AND ANSWERS 2025
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
, PHARMACY TECH CALCULATIONS QUESTIONS AND ANSWERS 2025
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
