CETP Pharmaceutical Calculations

Question 1

A patient is prescribed amoxicillin 250 mg/5 mL oral suspension. The prescribed dose is 125 mg three times daily. How many mL should be administered per dose?

Accepted Answer

2.5 mL

Answer

1.5 mL

Answer

5.0 mL

Answer

7.5 mL

Question 2

A physician orders 1 L of normal saline to be infused over 8 hours. What is the correct infusion rate in mL/hr?

Accepted Answer

125 mL/hr

Answer

100 mL/hr

Answer

150 mL/hr

Answer

200 mL/hr

Question 3

What is the percentage strength (w/v) of a solution containing 5 g of sodium chloride dissolved in enough water to make 200 mL?

Accepted Answer

2.5%

Answer

0.25%

Answer

1.0%

Answer

5.0%

Question 4

A child weighs 22 lbs. The prescribed antibiotic dose is 10 mg/kg/day in two equally divided doses. How many mg should be given per dose?

Accepted Answer

50 mg

Answer

25 mg

Answer

100 mg

Answer

200 mg

Question 5

How many grams of dextrose are contained in 500 mL of D5W (5% dextrose in water)?

Accepted Answer

25 g

Answer

5 g

Answer

50 g

Answer

100 g

Question 6

A preparation is labeled as a 1:500 ratio strength solution. What is this expressed as a percentage strength?

Accepted Answer

0.2%

Answer

0.02%

Answer

2%

Answer

5%

Question 7

A patient is prescribed metformin 1 g twice daily. Metformin tablets are available as 500 mg. How many tablets are required per day?

Accepted Answer

4 tablets

Answer

1 tablet

Answer

2 tablets

Answer

8 tablets