Questions
NR 340 Medication Practice Answers 2014
Directions: The purpose of this packet is to prepare you for the medication
calculation exam that is taken on the first day of class. Complete the
medication calculation practice exam prior to the first day of class if needed.
In critical care, amounts are specific. If the calculation is not a whole
number, then answers are rounded off to the nearest 10th decimal place.
Pumps can be programmed to allow for a 10th decimal place. If the
calculation is for drops per minute then it is rounded off to the nearest
whole number because drops cannot be divided. Good Luck!
1. Your patient is ordered a dopamine drip at 7mcg/kg/min. He weighs 120
pounds. Your dopamine is supplied in a concentration of 400mg per
250ml D5W. At how many ml/hr should the IV pump be set?
7mcg 250 mL 1mg 1 kg 120 lbs 60 min
=
Kg/min 400 mg 1000 mcg 2.2 lbs11 hr
12600000=
880000
14.318181 (Round to the nearest 10th decimal place) =
14.3ml/hr
2. Your patient is on Nitroprusside (Nipride) to keep his systolic blood
pressure less than 180mmHg. The physician orders state to begin the
infusion at 0.1mcg/kg/min and to titrate up every 3 to 5 minutes to
desired effect. Maximum dose to be given is 5mcg/kg/min. Your
patient weighs 150 pounds. The medication comes supplied as 50mg
in 250ml D5W.
At how many ml/hr should the IV be started?
0.1 mcg 250 ml 1 mg 1 kg 150 lbs 60 min =
Kg/min 50 mg 1000 mcg 2.2 lbs 1 1 hr
225000 =
110000
2.0454545 (Round to the nearest 10th decimal place) = 2.0 mL/hr
because trailing zeroes are not used the answer is 2 ml/hr
, NR 340 Critical Care Practice
Questions
What is the maximum ml/hr that the nipride can be run at?
5 mcg 250 mL 1 mg 1 kg 150 lbs 60 min =
Kg/min 50 mg 1000 mcg 2.2 lbs 1 1 hr
11250000 =
110000
102.27272 (Round to the nearest 10th decimal place)= 102.3 ml/hr
3. The physician orders Fentanyl 3mcg/kg IVP at a rate of 2mcg/kg/min
for analgesia prior to inserting an endotracheal tube. The patient
weighs 50 kg. The Fentanyl is supplied as 100mcg/ml.
How many ml of Fentanyl will you give?
3 mcg 1 mL
50 kg =
Kg 1000 mg1
150
100 =
1.5 ml