PTCB Math Exam Questions with
All Correct Answers
A prescription reads to dispense a quantity sufficient for Amoxicillin with directions that
read: Take 3 tablespoons QID for 10 days. How many milliliters should be dispensed? -
Answer-450
Potassium Chloride is available 4mEq/5mL. The order calls for a 32mEq dose BID. How
many milliliters does the patient need to take daily? - Answer-80
A patients methylprednisolone IV has been increased to 100mg BID from 60mg BID.
What new total volume do you need for one dose from a vial containing 125mg per 1cc?
- Answer-0.96
The pharmacist has asked that you dissolve 70g of drug in 1400mL of solution. What is
the percent strength of solution? - Answer-5
The order reads 25mg/kg per day. The patient weighs 45lbs and the drug is available
50mg/mL. How many milliliters will the patient receive per day? - Answer-10
A patient is to receive 1250mL of D5LR over 10 hours. The drop factor for the tubing is
20gtts/mL. Calculate the flow rate in gtts/min. - Answer-42
How many grains are there in 1170mg? - Answer-18
Prepare a 500mg dose of chlorpromazine. The pharmacy has chlorpromazine 25mg/ml
in stock. - Answer-20
An order calls for 500mg of Amoxicillin. The pharmacy has 5mg/50ml of Amoxicillin in
stock. How many ml are required to fill the order? - Answer-5000
What is the percent strength of a 250ml solution that contains 25g of drug? - Answer-10
Convert 0.25mg to mcg - Answer-250
How many grams of drug are in 500ml of 20% solution? - Answer-100
An order calls for 500mg of Amoxicillin BID for 10 days. The pharmacy only has
amoxicillin 250mg/5ml. How many ML are needed to fill this order? - Answer-200
, You need to prepare 1500ml of hydrochlorothiazide 10mg/ml. How many 25mg tablets
of hydrochlorothiazide will you need? - Answer-600
The directions on a RX read: "Metformin take 1g q.d. x 90 days" The pharmacy only has
500mg tablets in stock. How many tablets will the patient need? - Answer-180
An order calls for 2.5mg of a drug to be taken twice daily. In stock you have 500mcg/ml.
How many teaspoons does the patient need to take daily? - Answer-2
You dilute 50ml of an 8% solution to 500ml. What is the percentage strenth of the
resulting solution? - Answer-0.8
What is the percentage strength of a solution that is made up by adding 200ml of
purified water to 600ml of a 25% solution? - Answer-18.75
Calculate how many ml of 50% dextrose solution and how many ml of water are needed
to prepare 4.5L of a 1% solution. (ONLY ANSWER FOR WATER IS GIVEN) - Answer-
4410
How many ml of a 50% solution and how many ml of a 5% solution are needed to
prepare 4 liters of a 10% solution? (ONLY ANSWER FOR 5% SOLUTION GIVEN) -
Answer-3556
How many ml of a 15% solution of sodium chloride and ml of water should be used to
prepare 1 liter of a 0.9% solution of sodium chloride? (ONLY ANSWER FOR WATER IS
GIVEN) - Answer-940
How many ml of each of a 20% stock solution and a 30% stock solution will a technician
need to make 500ml of a 28% solution? (ONLY ANSWER FOR 20% GIVEN) - Answer-
100
You need to prepare 150 ml of clonidine 0.1mg/5ml suspension. How many tablets of
clonidine 0.2mg/tablet will you need? - Answer-15
You need to prepare 300ml of methylphenidate 10mg/5ml suspension. How many
tablets of methylphenidate 20mg/tablet will you need? - Answer-30
You need to prepare 30g of salicylic acid 40% in petrolatum. How many gm of salicylic
acid will you need? - Answer-12
1000ml D5W to be infused over 20 hours. What is the flow rate in mililiters per hour? -
Answer-50
250ml LR to be infused over 10 hours. What is the flow rate in mililiters per hour? -
Answer-25
All Correct Answers
A prescription reads to dispense a quantity sufficient for Amoxicillin with directions that
read: Take 3 tablespoons QID for 10 days. How many milliliters should be dispensed? -
Answer-450
Potassium Chloride is available 4mEq/5mL. The order calls for a 32mEq dose BID. How
many milliliters does the patient need to take daily? - Answer-80
A patients methylprednisolone IV has been increased to 100mg BID from 60mg BID.
What new total volume do you need for one dose from a vial containing 125mg per 1cc?
- Answer-0.96
The pharmacist has asked that you dissolve 70g of drug in 1400mL of solution. What is
the percent strength of solution? - Answer-5
The order reads 25mg/kg per day. The patient weighs 45lbs and the drug is available
50mg/mL. How many milliliters will the patient receive per day? - Answer-10
A patient is to receive 1250mL of D5LR over 10 hours. The drop factor for the tubing is
20gtts/mL. Calculate the flow rate in gtts/min. - Answer-42
How many grains are there in 1170mg? - Answer-18
Prepare a 500mg dose of chlorpromazine. The pharmacy has chlorpromazine 25mg/ml
in stock. - Answer-20
An order calls for 500mg of Amoxicillin. The pharmacy has 5mg/50ml of Amoxicillin in
stock. How many ml are required to fill the order? - Answer-5000
What is the percent strength of a 250ml solution that contains 25g of drug? - Answer-10
Convert 0.25mg to mcg - Answer-250
How many grams of drug are in 500ml of 20% solution? - Answer-100
An order calls for 500mg of Amoxicillin BID for 10 days. The pharmacy only has
amoxicillin 250mg/5ml. How many ML are needed to fill this order? - Answer-200
, You need to prepare 1500ml of hydrochlorothiazide 10mg/ml. How many 25mg tablets
of hydrochlorothiazide will you need? - Answer-600
The directions on a RX read: "Metformin take 1g q.d. x 90 days" The pharmacy only has
500mg tablets in stock. How many tablets will the patient need? - Answer-180
An order calls for 2.5mg of a drug to be taken twice daily. In stock you have 500mcg/ml.
How many teaspoons does the patient need to take daily? - Answer-2
You dilute 50ml of an 8% solution to 500ml. What is the percentage strenth of the
resulting solution? - Answer-0.8
What is the percentage strength of a solution that is made up by adding 200ml of
purified water to 600ml of a 25% solution? - Answer-18.75
Calculate how many ml of 50% dextrose solution and how many ml of water are needed
to prepare 4.5L of a 1% solution. (ONLY ANSWER FOR WATER IS GIVEN) - Answer-
4410
How many ml of a 50% solution and how many ml of a 5% solution are needed to
prepare 4 liters of a 10% solution? (ONLY ANSWER FOR 5% SOLUTION GIVEN) -
Answer-3556
How many ml of a 15% solution of sodium chloride and ml of water should be used to
prepare 1 liter of a 0.9% solution of sodium chloride? (ONLY ANSWER FOR WATER IS
GIVEN) - Answer-940
How many ml of each of a 20% stock solution and a 30% stock solution will a technician
need to make 500ml of a 28% solution? (ONLY ANSWER FOR 20% GIVEN) - Answer-
100
You need to prepare 150 ml of clonidine 0.1mg/5ml suspension. How many tablets of
clonidine 0.2mg/tablet will you need? - Answer-15
You need to prepare 300ml of methylphenidate 10mg/5ml suspension. How many
tablets of methylphenidate 20mg/tablet will you need? - Answer-30
You need to prepare 30g of salicylic acid 40% in petrolatum. How many gm of salicylic
acid will you need? - Answer-12
1000ml D5W to be infused over 20 hours. What is the flow rate in mililiters per hour? -
Answer-50
250ml LR to be infused over 10 hours. What is the flow rate in mililiters per hour? -
Answer-25
