Your patient is prescribed one litre of sodium chloride 0.9% over 6 hours. Using a standard giving set (20 drops per mL), how many drops per minute do you want?
Question
Your patient is prescribed one litre of sodium chloride 0.9% over 6 hours. Using a standard giving set (20 drops per mL), how many drops per minute do you want?
Solution
To calculate the number of drops per minute, follow these steps:
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Convert the volume from liters to milliliters. 1 liter is equal to 1000 milliliters. So, 1 liter of sodium chloride 0.9% is 1000 mL.
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Calculate the total number of drops. The standard giving set delivers 20 drops per mL. So, 1000 mL * 20 drops/mL = 20,000 drops.
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Calculate the total time in minutes. 6 hours is equal to 360 minutes (6 hours * 60 minutes/hour).
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Divide the total number of drops by the total time in minutes to get the number of drops per minute. So, 20,000 drops / 360 minutes = approximately 56 drops per minute.
Therefore, you would want to set the drip rate at approximately 56 drops per minute.
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