PRACTICE MATH EXAM
1. This IV medication requires dilution.
The drug reference book states to dilute Pepcid with 5 ml NS before delivering IVP over 5
minutes.
Order: 20 mg IVP Available: 10 mg/mL
a. Calculate the amount of medication to be given. _________________mL
b. Volume of drug: _______________ Volume of diluent: ____________Total volume to be
delivered_______________
c. How fast should the medication be pushed? __________________
2. This IV medication requires dilution. The drug reference book states to dilute levothyroxine
with 5 mL NS before giving. Rate should be 100mcg/min.
Order: 300 mcg IVP
Available: 200mcg/mL
a. Calculate the amount of medication to be given: _______________ (mL)
b. Amount of medication to be given is__________ mL + _____________ mL of diluent =
______________ mL (total volume to be administered IVP)
c. How fast should the medication be pushed? __________________
3. Insulin:
Blood Sugar
< 60
60 – 150
151 – 180
181 – 200
201 – 220
221 – 240
241 – 260
>261
Sliding Scale Insulin Dose (regular insulin)
Notify physician
0 units
2 units
4 units
6 units
8 units
10 units
Notify physician
Order: 1730 dose of 50/50 insulin 38 units. Blood sugar at 1730 is 175.
Determine sliding scale insulin dose.
Show regular insulin dose
Show 50/50 insulin dose
*LABEL WORK ON SYRINGE
4. Order: Start Insulin drip at 2 units / hour.
Available: 50 units Regular Insulin/250 mL NS
Rate should be: _____________
5. The insulin drip is infusing at 10 units per hour.
Order: Titrate the insulin drip upward by 2 units for a blood sugar of 150 – 180 .
Available: 100 units regular insulin/100mL NS Blood sugar: 166
What is the rate for the new dose?_______________
HEPARIN
Protocol for Heparin Infusion: Current concentration 100 units heparin/mL
Starting dose of continuous infusion
Titrate heparin according to daily aPTT
50 – 60 kg
61 – 70 kg
71 – 80 kg
81 – 90 kg
900 units/hr
1100 units/hr
1300 units/hr
1450 units/hr
aPTT
< 35
36 – 45
46 – 70
71 – 90
>90
Change
Increase dose by 200 units/hr
Increase dose by 100 units/hr
No change
Decrease dose by 100 units/hr
Hold infusion on hour, then restart at
150 units/hr less.
6. Calculate the beginning rate of a heparin infusion for a patient weighing 154 pounds.
_____________units or ___________mL/hr
7. The aPTT is 75. Titrate the heparin drip to administer the new dose.
________________ units or _____________mL/hr
8. The nurse checks the IV rate to find the rate at 12 mL/hr. The IV is labeled 25,000 units
heparin/250 mL D5W. What dose is the patient receiving? ____________________
IV Flow Rates
9. Order: 1000 mL NS to run at 150 mL/hr. The tubing has a drip factor of 10 gtt/mL
What is the correct flow rate? (gtt/min) _____________________
10. Order: Administer Reglan 15 mg in 50 mL D5W in 20 minutes. The drip factor is 10 gtt/mL
What is the correct flow rate _________________(gtt/min)
11. Order: Jevity ½ strength tube feedings at 55 mL/hr. Available: Jevity 240 mL
Amount of water to be added to achieve ½ strength solution? _____________________