PTCB Pharmacy Calculations Quiz 2

1.

A 1,250 mL bag of Hartmann’s solution is being infused at a rate of 125 mL/hour. Using tubing with a drop factor of 20 gtt/mL, what is the drip rate in gtts/min?

8 gtts/min

24 gtts/min

42 gtts/min

78 gtts/min

2.

A pharmacist must prepare 200 mL of a solution that is 5% dextrose. The pharmacy has available a 10% dextrose solution and a 2% dextrose solution. How many mL of the 2% solution is needed to prepare the final 5% dextrose solution?

50 mL

75 mL

125 mL

150 mL

3.

A pharmacy technician is asked to prepare 500 mL of a solution containing 0.25 g of drug per 10 mL. How many milligrams of drug is required to prepare the solution?

8,250 mg

9,750 mg

12,500 mg

25,000 mg

4.

A pharmacy sells 500 units of medicine for $15 per unit. The cost to the pharmacy to acquire the medicine is $8 per unit. What is the total profit the pharmacy makes from selling all 500 units?

$1,500

$3,500

$4,000

$7,500

5.

A physician prescribes amoxicillin for a pediatric patient weighing 15 kg. The recommended dose of amoxicillin is 20 mg/kg/day divided into two doses. How many milligrams of amoxicillin should be administered for each dose?

125 mg

150 mg

250 mg

300 mg

6.

A pharmacy technician must prepare 250 mL of a 5% w/v potassium chloride (KCl) solution. How many grams of potassium chloride are required to make this solution?

2.5 g

5 g

7.5 g

12.5 g

7.

A pharmacy technician must prepare a 1 : 200 ratio strength solution of sodium nitrite. How many grams of sodium nitrite are needed to prepare 750 mL of this solution?

2.5 g

3.75 g

4.95 g

5.2 g

8.

A prescription calls for 2 tablespoons of liquid medication. How many teaspoons should be dispensed?

2 tsp

4 tsp

6 tsp

8 tsp

9.

A TPN order requires 80 mEq of sodium chloride. The available NaCl stock solution has a concentration of 4 mEq/mL. How many milliliters of the stock solution are needed to fulfill the TPN order?

20 mL

40 mL

80 mL

320 mL

10.

A pharmacy technician receives the prescription: ciprofloxacin 500 mg, 1 tab po tid, dispense 42 tablets. How many days' supply of medicine should the patient receive?

7 days

10 days

14 days

21 days

PTCB Pharmacy Calculations Quiz 2

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