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MEDICATION CALCULATION TEST REVIEW
Makeba Felton, RN, MSN, FNPC, WHNP Academic Counselor Fall, 2006
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WHY IS THIS IMPORTANT?? PATIENT SAFETY
COMPETENCY AS A NURSING STUDENT/ NURSE SMALL MISTAKES= BIG PROBLEMS
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What to Review?? Handout Abbreviations (front cover of book)
Conversions Medication dosages IV flow rates Heparin infusions IV drip rates
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ABBREVIATIONS ac pc hs ou od q sq STAT tid bid qid mcg gtt IM
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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
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MEDICATION DOSAGES RATIO AND PROPORTION…. DOSAGE DESIRED DOSAGE VOLUME
________________ X _______________ STOCK WEIGHT STOCK VOLUME (available)
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MEDICATION DOSAGES 1. Order: 35 mg drug for your patient
Available: 40 mg per 2.5ml What amount do you give….. Answer:____________
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MEDICATION DOSAGES Order: 0.45mg for your patient
Available: Tablets labeled 0.3mg What amount do you give….. Answer:____________
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MEDICATION DOSAGES Order: 50mg IM of a drug Available: 80 mg per mL
What amount do you give….. Answer:____________
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MEDICATION DOSAGES Theophylline elixir 120 mg po bid.
You have Theophylline elixir in 80 mg/15 mL solution available. How much will you give?? ________________
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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
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Formula… volume in minutes
IV FLOW RATES Formula… volume in minutes x gtt = Amount of solution x drop factor 1 min time in minutes
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IV FLOW RATES Formula for volume per hour infusion…
x mL = amount of solution (mL) 1 hour time in hours
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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?? __________________
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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. ____________
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IV FLOW RATES 7. How long will it take for 150 mL of solution to infuse at 25 mL/ hr?? ______________
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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?? _________________
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Units available = Units ordered
HEPARIN INJECTIONS Formula… Units available = Units ordered in 1 mL x amount
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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?? __________________
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HEPARIN INFUSIONS Formula… Units of heparin in sol’n = x units
amount of sol’n hep rate of infusion is in
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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?? ______________
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