chapter 8 calculation of basic iv drip rates
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Chapter 8 Calculation of Basic IV Drip Rates. Types of Intravenous Fluids. D5W = D5%W D5S = D5 %0.9NS D51/2NS = D5 %0.45NS NS = 0.9%NS ½NS = 0.45% NS. Intravenous Drip Factors. Microdrip = 60 gtt/mL Macrodrip need to check package 10 gtt/mL 15 gtt/mL 20 gtt/ml - PowerPoint PPT PresentationTRANSCRIPT
Copyright © 2009 Wolters Kluwer Health | Lippincott Williams & Wilkins
Chapter 8Calculation of
Basic IV Drip Rates
Chapter 8Calculation of
Basic IV Drip Rates
Copyright © 2009 Wolters Kluwer Health | Lippincott Williams & Wilkins
Types of Intravenous FluidsTypes of Intravenous Fluids
• D5W = D5%W
• D5S = D5 %0.9NS
• D51/2NS = D5 %0.45NS
• NS = 0.9%NS
• ½NS = 0.45% NS
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Intravenous Drip FactorsIntravenous Drip Factors
• Microdrip = 60 gtt/mL
• Macrodrip need to check package
– 10 gtt/mL
– 15 gtt/mL
– 20 gtt/ml
• To calculate IV drip rates, must know this information
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Electric Infusion PumpsElectric Infusion Pumps
• Volume for infusion
• Rate for infusion
• Turn pump on
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Intravenous Piggybacks on Electronic Infusion PumpsIntravenous Piggybacks on Electronic Infusion Pumps
• Secondary volume
• Secondary rate
• Turn pump on
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Calculating Basic IV Drip RatesCalculating Basic IV Drip Rates
• Number of milliliters to infuse x tubing factor = drops per minute or gtt/min number of minutes to infuse
• When the order reads “hour,” convert to minutes by multiplying by 60 (60 minutes = 1 hour)
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Calculating IV Drips for Infusion PumpCalculating IV Drips for Infusion Pump
• Total number of milliliters ordered = mL/hour Number of hours to run
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QuestionQuestion
Order: 1000 mL D5W at 120 mL/hour
Available macrodrip 15 gtt/mL
What is the drip factor in drops per minute?
A. 30
B. 31
C. 32
D. 33
Copyright © 2009 Wolters Kluwer Health | Lippincott Williams & Wilkins
AnswerAnswer
A. 30
– 120 mL × 15 gtt/mL = 30 gtt/min 60 minutes
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Determining Hours an IV Will RunDetermining Hours an IV Will Run
• Number of milliliters ordered = Number of hours to run Number of milliliters per hour
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QuestionQuestion
How many hours will 500 mL of D5½NS run at 125 mL/hour?
A. 3
B. 4
C. 5
D. 6
Copyright © 2009 Wolters Kluwer Health | Lippincott Williams & Wilkins
AnswerAnswer
B. 4
– Number of milliliters ordered = Number of hours to run Number of milliliters per hour
– 500 mL = 4 hours75 mL/hour
Copyright © 2009 Wolters Kluwer Health | Lippincott Williams & Wilkins
Choosing the Infusion SetChoosing the Infusion Set• Microdrip
– IV administered over a long period
– Small amount of fluid to be infused
– Macrodrops per minute too few
• Macrodrip
– Order specifies a large amount of fluid over a short time
– Microdrips per minute are too many, and counting the drip rate becomes too difficult
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Adding Medications to IVsAdding Medications to IVs
• Check diluent and volume
• Check dose and expiration date of reconstituted solution
• Note whether IVPB should be refrigerated before use and remain at room temperature
• Calculate the drip rate and record this information on IVPB label
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Reconstitution DeviceReconstitution Device