Medication Dose Formula:
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Definition: This calculator determines the actual dose to administer based on the desired dose, medication concentration, and volume.
Purpose: It helps healthcare professionals and caregivers accurately calculate medication dosages for safe administration.
The calculator uses the formula:
Where:
Explanation: The desired dose is divided by the stock concentration to determine the concentration ratio, then multiplied by the volume to get the actual dose.
Details: Proper dose calculation ensures patient safety, prevents under or overdosing, and ensures therapeutic effectiveness.
Tips: Enter the desired dose in mg/kg, stock concentration in mg/ml, and volume in ml. All values must be > 0.
Q1: Why is the desired dose in mg/kg?
A: Many medications are dosed based on patient weight to ensure proper dosing across different body sizes.
Q2: Where do I find the stock concentration?
A: Check the medication label or package insert. It's typically listed as mg/ml or mg/tablet.
Q3: What if my medication has different units?
A: Convert all units to consistent measurements (mg/kg, mg/ml, and ml) before calculation.
Q4: Should I round the calculated dose?
A: Follow your institution's rounding rules, typically to the nearest measurable amount on your administration device.
Q5: Does this calculator account for patient factors?
A: No, always consider renal/hepatic function, age, and other factors that may affect dosing.