Allowable Blood Loss Calculator

The Maximum Allowable Blood Loss (ABL) is the amount of blood that can be lost during a surgery. The maximum ABL is calculated based on patient's weight. Final hemoglobin count minus initial hemoglobin count multiplied by the estimated blood volume gives you the maximum allowable blood loss, or ABL, for a patient. Enter the weight, Initial Hematocrit, Final Hematocrit and average blood volume in the allowable blood loss calculator and click calculate.

Maximum ABL Calculation


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