Home
Back
Dose Per M2 Formula:
| From: | To: |
Dose Per M2 (dose per square meter) is a method of medication dosing that normalizes the dose based on body surface area (BSA). This approach is commonly used in chemotherapy and other medications where precise dosing is critical.
The calculator uses the Dose Per M2 formula:
Where:
Explanation: This calculation adjusts the medication dose based on the patient's body surface area, providing a more personalized and accurate dosing regimen.
Details: BSA-based dosing is particularly important in oncology, pediatrics, and other specialties where medication toxicity and efficacy are highly dependent on body size. It helps minimize side effects while maintaining therapeutic effectiveness.
Tips: Enter the total medication dose in milligrams and the body surface area in square meters. Both values must be positive numbers greater than zero.
Q1: Why use BSA-based dosing instead of weight-based dosing?
A: BSA-based dosing often provides better correlation with metabolic rate and organ size, making it more appropriate for certain medications, particularly chemotherapeutic agents.
Q2: How is body surface area typically calculated?
A: BSA is commonly calculated using formulas like Mosteller, Du Bois, or Haycock, which use height and weight measurements.
Q3: What are typical Dose Per M2 ranges for medications?
A: Dose Per M2 ranges vary significantly by medication. Always consult the specific drug's prescribing information for appropriate dosing guidelines.
Q4: Are there limitations to BSA-based dosing?
A: BSA dosing may not be appropriate for all patients, particularly those with extreme body compositions, edema, or ascites. Clinical judgment should always be used.
Q5: Should Dose Per M2 be used for all medications?
A: No, Dose Per M2 is typically reserved for medications where there's a established correlation between BSA and drug metabolism, clearance, or toxicity.