Concentration Formula:
| From: | To: |
The Mg Kg to Mg L conversion calculates plasma or blood concentration from a given dose per body weight, considering blood volume and density factors. This is commonly used in pharmacology and toxicology for estimating drug concentrations.
The calculator uses the concentration formula:
Where:
Explanation: This formula converts a weight-based dose to a volume-based concentration, accounting for distribution in the bloodstream.
Details: Accurate concentration estimation is crucial for therapeutic drug monitoring, toxicology assessments, and determining appropriate dosing regimens to achieve desired plasma levels.
Tips: Enter dose in mg/kg, blood volume in L/kg (default 0.08 for adults), and density adjustment factor. All values must be positive numbers.
Q1: What is the typical blood volume per kg?
A: For adults, approximately 0.08 L/kg. This can vary by age, sex, and body composition.
Q2: When should I adjust the density factor?
A: Use 1.0 for whole blood concentration, 0.55 for plasma concentration (accounting for hematocrit).
Q3: Is this calculation accurate for all drugs?
A: This provides an initial estimate. Actual concentrations depend on absorption, distribution, metabolism, and excretion factors.
Q4: Can this be used for pediatric calculations?
A: Yes, but blood volume per kg is higher in children (approximately 0.085-0.090 L/kg for infants).
Q5: What are typical therapeutic ranges?
A: Therapeutic ranges vary significantly by medication. Consult specific drug monographs for target concentrations.