Calculating Drops Per Minute
gtts/min = volume to be infused X gtts/mL of administration set
total time in minutes
Examples:
You are ordered to infuse 500 cc of NS over 3 hours. Using a 15 gtts/mL
administration set what drip rate would you use?
gtts/min = 500 mL X 15 gtts/mL = 41.66 gtts/mi...
Drip Calculations
Jeremy Maddux, NREMTP
CALCULATING DRIP RATES
Calculating Drops Per Minute
gtts/min = volume to be infused X gtts/mL of administration set
total time in minutes
Examples:
You are ordered to infuse 500 cc of NS over 3 hours. Using a 15 gtts/mL
administration set what drip rate would you use?
gtts/min = 500 mL X 15 gtts/mL = 41.66 gtts/min
180 minutes
A nurse informs you that an IV of NS was started 3 hours ago and that 500 mL
have infused into the patient. The fluid is infusing through a macrodrop
administration set (10 gtts/mL). What is the rate of the IV?
Rate = 500 mL X 10 gtts/mL = 27.77 gtts/min
180 minutes
You are about to transfer a patient that has been on an IV of NS for 3 hours
running at 28 gtts/min on a macrodrop administration set (10 gtts/min). How
much fluid has this patient received?
Volume = 28 gtts/min = 2.8 mL/hr 2.8 mL/hr X 180 min = 504 mL
10 gtts/mL
Calculating Solution Concentration
mg in solution divided by mL in solution
Example:
To prepare your lidocaine infusion you have mixed 2 grams of lidocaine into 500
mL of D5W. How much lidocaine is in 1 mL of this solution?
2000 mg = 4 mg/mL
500 mL
To prepare your dopamine infusion you have mixed 800 mg of dopamine into 500
mL of D5W. How much dopamine is in 1 mL of this solution?
800 mg = 1.6 mg 1.6 mg X 1000 = 1600 mcg/mL
500 mL
Revised January 27, 2001
This study source was downloaded by 100000859819779 from CourseHero.com on 01-05-2023 14:28:20 GMT -06:00
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