PTCB Practice Exam 5

PTCB Practice Exam 5

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PTCB Practice Exam 5

• If a physician writes an order for 400 mL of D5W to be infused over a 4-hour time period,

and the IV drop factor is 12 gtt/mL, how many drops per minute should be delivered?

• 12 gtt
• 2 gtt
• 1.67 gtt
• 20 gtt

Answer: 20 gtt

First find the total number of minutes: 60 X 4 = 240. Then find mL/min: 400 / 240 = 1.67 ml infused in 1 minute. Then multiply this by the drop factor: 1.67 X 12 = 20 drops per minute.

• A drug sells for $29.99 retail and has a wholesale cost of $19.74. The dispensing cost is

$3.20. What is the pharmacy's net profit?

A $10.25

B $29.99

C $3.20

D $7.05

Answer: $7.05

Gross profit is selling price minus purchase price. For net profit you also need to subtract the dispensing cost as well.

• You are planning to prepare 600 mL of 20% dextrose solution, by mixing your 5% and 50%

dextrose solution. How much of each solution will be needed?

A 350 mL of the 50% and 250 mL of the 5% B 300 mL of the 50% and 100 mL of the 5% C 200 mL of the 50% and 400 mL of the 5% D 300 mL of the 50% and 300 mL of the 5%

Answer: 200 mL of the 50% and 400 mL of the 5%

• Seventy-four degrees Fahrenheit is equal to what temperature in Celsius?

A 74.0

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