PTCB Practice Exam (Math) Latest Update.
1. If a physician writes an order for 400 mL of
20 gtt
D5W to be infused over a 4-hour time period,
and the IV drop
is 12 gtt/mL, how many drops per minute should
factornumber
total First find the
be delivered?
of minutes: 60 X 4 =
a. 12 gtt 240. Then find mL/min:
b. 2 gtt = 1.67 ml
c. 1.67 gtt infused in 1 minute.
d. 20 gtt Then multiply this by the
drop factor: 1.67 X 12
= 20 drops per
2. A drug sells for $29.99 retail and has a minute.
wholesale cost of $19.74. The dispensing cost
is $3.20. What is the pharmacy's net profit? $7.05
A $10.25
B $29.99 Gross profit is selling
C $3.20 price minus purchase
D $7.05 price. For net profit
you also need
3. You are planning to prepare 600 mL of 20% to subtract the
dextrose solution, by mixing your 5% and dispensing cost as
50% dextrose solu- tion. How much of each well.
solution will be needed?
200 mL of the 50%
A 350 mL of the 50% and 250 mL of the 5% and
B 300 mL of the 50% and 100 mL of the 5% 400 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%
4. Seventy-four degrees Fahrenheit is equal to what tem- 23.3
1/
24
, PTCB Practice Exam (Math) Latest Update.
perature in Celsius?
A To convert from Fahren-
74.0
2/
24
, PTCB Practice Exam (Math) Latest Update.
B 23.3 8.
C 18.3
D 30.7
5. 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?
A 40 minutes
B 125 minutes
C 50 minutes
D 100 minutes
6. Convert 5.5 kg to pounds.
A 1.21 lb
B 55 lb
C 12.1 lb
D 0.55 lb
7. The percent equivalent of a 1:125 ratio is:
A 12.5%
B 0.8%
C 8.0%
D 0.08%
3/
24
1. If a physician writes an order for 400 mL of
20 gtt
D5W to be infused over a 4-hour time period,
and the IV drop
is 12 gtt/mL, how many drops per minute should
factornumber
total First find the
be delivered?
of minutes: 60 X 4 =
a. 12 gtt 240. Then find mL/min:
b. 2 gtt = 1.67 ml
c. 1.67 gtt infused in 1 minute.
d. 20 gtt Then multiply this by the
drop factor: 1.67 X 12
= 20 drops per
2. A drug sells for $29.99 retail and has a minute.
wholesale cost of $19.74. The dispensing cost
is $3.20. What is the pharmacy's net profit? $7.05
A $10.25
B $29.99 Gross profit is selling
C $3.20 price minus purchase
D $7.05 price. For net profit
you also need
3. You are planning to prepare 600 mL of 20% to subtract the
dextrose solution, by mixing your 5% and dispensing cost as
50% dextrose solu- tion. How much of each well.
solution will be needed?
200 mL of the 50%
A 350 mL of the 50% and 250 mL of the 5% and
B 300 mL of the 50% and 100 mL of the 5% 400 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%
4. Seventy-four degrees Fahrenheit is equal to what tem- 23.3
1/
24
, PTCB Practice Exam (Math) Latest Update.
perature in Celsius?
A To convert from Fahren-
74.0
2/
24
, PTCB Practice Exam (Math) Latest Update.
B 23.3 8.
C 18.3
D 30.7
5. 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?
A 40 minutes
B 125 minutes
C 50 minutes
D 100 minutes
6. Convert 5.5 kg to pounds.
A 1.21 lb
B 55 lb
C 12.1 lb
D 0.55 lb
7. The percent equivalent of a 1:125 ratio is:
A 12.5%
B 0.8%
C 8.0%
D 0.08%
3/
24
