How to Calculate Flow Rate in mL/hr: A Step-by-Step Guide

Learn how to calculate flow rate in mL/hr for IV fluids and medication administration effectively.

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To calculate flow rate in mL/hr, use the formula: Flow Rate (mL/hr) = Total Volume (mL) / Time (hrs). For instance, if you need to infuse 500 mL of IV fluid over 4 hours, the flow rate would be 500 mL ÷ 4 hrs = 125 mL/hr. Ensure accurate calculations for administering precise dosages.

FAQs & Answers

  1. What is the flow rate of IV fluids? The flow rate of IV fluids is the volume of fluid administered per unit time, usually expressed in mL/hr.
  2. How do you calculate flow rate for different infusion times? To calculate flow rates for varying infusion times, adjust the time in hours in the formula: Flow Rate (mL/hr) = Total Volume (mL) ÷ Time (hrs).
  3. Why is accurate flow rate calculation important? Accurate flow rate calculation ensures that patients receive the correct dosage of medications and fluids, preventing under dosing or overdosing.
  4. What units are used to measure flow rates? Flow rates are commonly measured in milliliters per hour (mL/hr) in medical settings.

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