Drops per Minute Formula:
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Definition: This calculator determines the infusion rate in drops per minute for intravenous (IV) fluid administration.
Purpose: It helps healthcare professionals accurately administer IV fluids and medications over a specified time period.
The calculator uses the formula:
Where:
Explanation: The total drops (volume × drip factor) are divided by the total minutes (hours × 60) to get the drops per minute rate.
Details: Proper calculation ensures patients receive the correct dosage of fluids/medications, preventing complications from too rapid or too slow infusion.
Tips: Enter the volume to be infused in mL, drip factor (default 20 drops/mL for standard tubing), and infusion time in hours. All values must be > 0.
Q1: What is a drip factor?
A: The number of drops per mL that the IV tubing delivers, typically printed on the tubing package (e.g., 10, 15, 20, or 60 drops/mL).
Q2: Why multiply time by 60?
A: To convert hours to minutes since we're calculating drops per minute.
Q3: What's the difference between macro and micro drip tubing?
A: Macro drip delivers 10-20 drops/mL, while micro drip delivers 60 drops/mL (used for pediatric or precise medication administration).
Q4: How do I adjust for different drip factors?
A: Change the drip factor value to match your specific IV tubing (check the packaging).
Q5: What if my infusion time is in minutes?
A: Convert minutes to hours (divide by 60) or modify the formula to use minutes directly.