PTCE TEST FINAL EXAM, PRACTICE EXAM
QUESTIONS AND STUDY GUIDE BEST
REVISION MATERIAL CURRENTLY TESTING
COMPLETE ACCURATE EXAM QUESTIONS
WITH 100% DETAILED VERIFIED AND
CORRECT ANSWERS ACTUAL BRAND-NEW
EXAM ALREADY GRADED A+
If 600mg of lidocaine powder is suspended in 150mL of
water, what would be the percent concentration of the
suspension?
A. 0.4%
B. 400%
C. 40%
D. 4% - ....ANSWER...A. 0.4%
Step 1: Convert from milligrams to grams: 1g
= 1000mg
600/1000 = 0.6g
Step 2: Calculate the percent concentration using the
following formula:
percent concentration = [(active ingredient)/(inactive
ingredient)]*100
percent concentration = (0.6g/150mL)*100 = 0.4%
1
,Note: The units of active and inactive ingredients can
only be expressed in grams or milliliters, depending
on whether the quantity represents a volume or a solid.
A patient is ordered metronidazole 500mg in 100mL of
NS to be infused at a rate of 5mL/min. Calculate the
infusion time.
A. 30 minutes
B. 1 hour
C. 20 minutes
D. 45 minutes - ....ANSWER...C. 20 minutes
Figure out how many minutes it will take for one bag to
run out:
infusion time = total volume/rate
so 100mL/(5mL per min) = 20 minutes
A patient is ordered potassium chloride 15mEq in
1000mL of 0.45% NS to be infused at a rate of
2mL/min. How many bags should be dispensed for a 24-
hour supply?
A. 1 bag
B. 2 bags
C. 3 bags
D. 4 bags - ....ANSWER...C. 3 bags
2
,Step 1: Calculate infusion time:
infusion time = total volume/rate
1000mL/(2mL per min) = 500 minutes (infusion time for
each bag)
Step 2: Calculate the amount of IV bags needed for a
24-hour supply. A day is comprised of 24 hours and
each hour is 60 minutes, so there is a total of 1440
minutes per day:
1000mL/500min = x/1440; x = (1440*1000)/500 =
2880mL
Step 3: Calculate how many bags should be dispensed:
dose ordered/dose available = amount to be dispensed
2880mL/1000mL = 2.88 or 3 bags
What is the equivalent of the temperature 86C in
Fahrenheit?
A. 122.8F
B. 186.8F
C. 30F
D. 66F - ....ANSWER...B. B.
186.8F F = (C*1.8)+32
F = (86*1.8)+32 = 186.8F
3
, Use Clark's rule to calculate the medication dose for a 12
year old child who weighs 90lb if the adult dose is
500mg.
A. 27mg
B. 833mg
C. 250mg
D. 300mg - ....ANSWER...D. 300mg
According to Clark's rule:
child's dose = (child's weight in lb*adult dose)/150lb
child's dose = (90*500mg)/150lb = 300mg
Note: Clark's rule is based on weight and it is the only
formula that uses weight in pounds instead of kilograms.
In Clark's rule, 150lb is a constant and so that number
never changes.
Use Young's rule to calculate the medication dose for a
12 year old child who weighs 90lb if the adult dose is
500mg.
A. 27mg
B. 833mg
C. 250mg
D. 300mg - ....ANSWER...C. 250mg
According to Young's rule:
child dose = age in years/(age+12)*adult dose
4
QUESTIONS AND STUDY GUIDE BEST
REVISION MATERIAL CURRENTLY TESTING
COMPLETE ACCURATE EXAM QUESTIONS
WITH 100% DETAILED VERIFIED AND
CORRECT ANSWERS ACTUAL BRAND-NEW
EXAM ALREADY GRADED A+
If 600mg of lidocaine powder is suspended in 150mL of
water, what would be the percent concentration of the
suspension?
A. 0.4%
B. 400%
C. 40%
D. 4% - ....ANSWER...A. 0.4%
Step 1: Convert from milligrams to grams: 1g
= 1000mg
600/1000 = 0.6g
Step 2: Calculate the percent concentration using the
following formula:
percent concentration = [(active ingredient)/(inactive
ingredient)]*100
percent concentration = (0.6g/150mL)*100 = 0.4%
1
,Note: The units of active and inactive ingredients can
only be expressed in grams or milliliters, depending
on whether the quantity represents a volume or a solid.
A patient is ordered metronidazole 500mg in 100mL of
NS to be infused at a rate of 5mL/min. Calculate the
infusion time.
A. 30 minutes
B. 1 hour
C. 20 minutes
D. 45 minutes - ....ANSWER...C. 20 minutes
Figure out how many minutes it will take for one bag to
run out:
infusion time = total volume/rate
so 100mL/(5mL per min) = 20 minutes
A patient is ordered potassium chloride 15mEq in
1000mL of 0.45% NS to be infused at a rate of
2mL/min. How many bags should be dispensed for a 24-
hour supply?
A. 1 bag
B. 2 bags
C. 3 bags
D. 4 bags - ....ANSWER...C. 3 bags
2
,Step 1: Calculate infusion time:
infusion time = total volume/rate
1000mL/(2mL per min) = 500 minutes (infusion time for
each bag)
Step 2: Calculate the amount of IV bags needed for a
24-hour supply. A day is comprised of 24 hours and
each hour is 60 minutes, so there is a total of 1440
minutes per day:
1000mL/500min = x/1440; x = (1440*1000)/500 =
2880mL
Step 3: Calculate how many bags should be dispensed:
dose ordered/dose available = amount to be dispensed
2880mL/1000mL = 2.88 or 3 bags
What is the equivalent of the temperature 86C in
Fahrenheit?
A. 122.8F
B. 186.8F
C. 30F
D. 66F - ....ANSWER...B. B.
186.8F F = (C*1.8)+32
F = (86*1.8)+32 = 186.8F
3
, Use Clark's rule to calculate the medication dose for a 12
year old child who weighs 90lb if the adult dose is
500mg.
A. 27mg
B. 833mg
C. 250mg
D. 300mg - ....ANSWER...D. 300mg
According to Clark's rule:
child's dose = (child's weight in lb*adult dose)/150lb
child's dose = (90*500mg)/150lb = 300mg
Note: Clark's rule is based on weight and it is the only
formula that uses weight in pounds instead of kilograms.
In Clark's rule, 150lb is a constant and so that number
never changes.
Use Young's rule to calculate the medication dose for a
12 year old child who weighs 90lb if the adult dose is
500mg.
A. 27mg
B. 833mg
C. 250mg
D. 300mg - ....ANSWER...C. 250mg
According to Young's rule:
child dose = age in years/(age+12)*adult dose
4
