PTCB Practice Exam (Math) Questions and
Answers
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?
a. 12 gtt
b. 2 gtt
c. 1.67 gtt
d. 20 gtt - ANSWER-20 gtt
First find t...
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
B 23.3
C 18.3
D 30.7 - ANSWER✔✔-23.3
To convert from Fahrenheit to Celsius, subtract 32 from the Fahrenheit temperature and then divide by
1.8.
An order is written for 500 mL of NS to infuse at 40 gtt/min. How long would it take to infuse the NS if
the set delivers 10 gtt/mL?
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