ABL_Without_Transfusion_guideline v.1
Maximum Allowable Blood Loss (ABL) Without Transfusion
To estimate the maximum allowable blood loss intraoperatively before transfusion should be considered.
The Maximum Allowable Blood Loss Without Transfusion calculator suggests how much blood can be lost, typically during surgery, before transfusion should be considered. Use in patients with blood loss, typically during surgery, who may need transfusion. Variables: Type of patient: Age Average blood volume by age Adult man 75 Adult woman 65 Infant 80 Neonate 85 Premature neonate 96 weight kg Hemoglobin (initial or final) mg/dl EBV = body weight, kg x average blood volume*, mL/kg ABL = [EBV x (Initial hemoglobin-Final hemoglobin (cutoff for transfusion))] / Average of initial and final hemoglobin
1. Gross JB. Estimating Allowable Blood Loss Corrected for Dilution. Anesthesiology 58.2 (1983): 277-280. 2. Practice Guidelines for blood component therapy: A report by the American Society of Anesthesiologists Task Force on Blood Component Therapy. 3. Practice guidelines for blood transfusion: a compilation from recent peer-reviewed literature. American Red Cross.
OBSERVATION.abl_without_transfusion.v0, OBSERVATION.body_weight.v2, OBSERVATION.lab_test-full_blood_count.v1
