Pharmacy Technician PTCB Pharmacy Calculations 3

Question 1

A prescription for Metformin 500 mg reads '#60, 1 tab BID.' What is the days supply?

Accepted Answer

30 days

Answer

60 days

Answer

15 days

Answer

120 days

Question 2

A child weighs 22 lbs. The recommended dose is 10 mg/kg/day divided BID. What is each individual dose?

Accepted Answer

50 mg

Answer

100 mg

Answer

25 mg

Answer

200 mg

Question 3

A TPN bag contains 500 mL of dextrose 50% (D50W). How many grams of dextrose are in the bag?

Accepted Answer

250 g

Answer

500 g

Answer

50 g

Answer

125 g

Question 4

If 1 teaspoon equals 5 mL, how many teaspoons are in a 150 mL bottle?

Accepted Answer

30 tsp

Answer

20 tsp

Answer

25 tsp

Answer

15 tsp

Question 5

A powder for reconstitution has a powder volume of 10 mL. Adding 90 mL of water gives a final concentration of 250 mg/5 mL. What is the total volume after reconstitution?

Accepted Answer

100 mL

Answer

90 mL

Answer

250 mL

Answer

50 mL

Question 6

A 1 in 4 dilution is needed; the final volume required is 200 mL. How much concentrate is needed?

Accepted Answer

50 mL

Answer

100 mL

Answer

25 mL

Answer

150 mL

Question 7

Convert 0.5 g to milligrams.

Accepted Answer

500 mg

Answer

5 mg

Answer

50 mg

Answer

5,000 mg