1. MEDICATION CALCULATION TEST REVIEW
Makeba Felton, RN, MSN, FNPC, WHNP
Academic Counselor
Fall, 2006

2. WHY IS THIS IMPORTANT?? PATIENT SAFETY
COMPETENCY AS A NURSING STUDENT/ NURSE
SMALL MISTAKES= BIG PROBLEMS

3. What to Review?? Handout Abbreviations (front cover of book)
Conversions
Medication dosages
IV flow rates
Heparin infusions
IV drip rates

4. ABBREVIATIONS ac pc hs ou od q sq
STAT
tid
bid
qid
mcg
gtt IM

5. CONVERSIONS 1g= 1000 mg 1mg= _____ mcg 1mL= ____cc 1 L= 1000 mL
1tsp=5 mL
1T= _____ mL
1mL= ____cc
1 c = ____mL
1gr= _____mg
1oz= 30mL

6. MEDICATION DOSAGES RATIO AND PROPORTION…. DOSAGE DESIRED DOSAGE VOLUME
________________ X _______________
STOCK WEIGHT STOCK VOLUME
(available)

7. MEDICATION DOSAGES 1. Order: 35 mg drug for your patient
Available: 40 mg per 2.5ml
What amount do you give…..
Answer:____________

8. MEDICATION DOSAGES Order: 0.45mg for your patient
Available: Tablets labeled 0.3mg
What amount do you give…..
Answer:____________

9. MEDICATION DOSAGES Order: 50mg IM of a drug Available: 80 mg per mL
What amount do you give…..
Answer:____________

10. MEDICATION DOSAGES Theophylline elixir 120 mg po bid.
You have Theophylline elixir in
80 mg/15 mL solution available. How much will you give??
________________

11. FORMULA….for drops per minute
IV FLOW RATES
FORMULA….for drops per minute
x gtt = amount of solution x drop factor
1min time in min

12. Formula… volume in minutes
IV FLOW RATES
Formula… volume in minutes
x gtt = Amount of solution x drop factor
1 min time in minutes

13. IV FLOW RATES Formula for volume per hour infusion…
x mL = amount of solution (mL)
1 hour time in hours

14. IV FLOW RATES
You need to administer D5W at 100mL/hr. The tubing drop factor is
10 gtt/ min. At what rate in gtt/min should the fluid be regulated at??
__________________

15. IV FLOW RATES
6. You need to administer 500 mL of D5W over 4 hours. Your drop factor is 15 gtt/min. Calculate the IV flow rate in gtt/min.
____________

16. IV FLOW RATES
7. How long will it take for 150 mL of solution to infuse at 25 mL/ hr?? ______________

17. IV FLOW RATES
8. A client is receiving 1000mL of D5LR at 100mL/ hr. How many hours will it take for the IV to infuse??
_________________

18. Units available = Units ordered
HEPARIN INJECTIONS
Formula…
Units available = Units ordered
in 1 mL x amount

19. HEPARIN INJECTIONS
9. You are to administer 2500 units of heparin. What you have available is 10,000 units/ mL. How much heparin do you administer?? __________________

20. HEPARIN INFUSIONS Formula… Units of heparin in sol’n = x units
amount of sol’n hep rate of infusion
is in

21. HEPARIN INFUSION
You are to infuse 1200 units of heparin per hour of NS containing 20,000 units of heparin. What is the rate of infusion??
______________