IV Flow Rate Equation:
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The IV flow rate is the speed at which an intravenous fluid is administered to a patient, typically measured in milliliters per hour (mL/h). It's crucial for ensuring patients receive the correct amount of medication or fluids over a specified time period.
The calculator uses the basic flow rate equation:
Where:
Explanation: This equation calculates how many milliliters should be delivered each hour to complete the infusion in the specified time.
Details: Accurate flow rate calculation ensures proper medication dosing, prevents fluid overload, and helps maintain therapeutic drug levels. Incorrect rates can lead to under- or over-treatment.
Tips: Enter the total volume in milliliters and the desired infusion time in hours. Both values must be positive numbers.
Q1: How do I calculate flow rate for minutes instead of hours?
A: First convert minutes to hours (divide by 60), or use the formula: Rate (mL/min) = Volume (mL) / Time (min).
Q2: What's a typical flow rate for IV fluids?
A: Maintenance rates are typically 50-100 mL/h for adults, but therapeutic rates vary widely based on the medication and patient condition.
Q3: How does drop factor affect flow rate?
A: When calculating drops per minute, you need to know the drop factor (drops/mL) of your IV set. This calculator provides mL/h which can be converted to drops/min if needed.
Q4: What if my infusion time is less than 1 hour?
A: Enter the time as a decimal (e.g., 30 minutes = 0.5 hours). The calculator will give the appropriate mL/h rate.
Q5: How accurate should my flow rate be?
A: For critical medications, flow rates should be precise. Always use an infusion pump for medications requiring exact dosing.