There are no firm criteria for initiating red cell transfusion. The decision to provide blood transfusion should be based on both clinical and haematological assessment.

The 2009–12 Confidential Enquiries into Maternal Deaths and Morbidity report3 highlighted the importance
of correlating clinical signs and symptoms expected from different blood loss values to help target decisions on resuscitation, and also emphasised the importance of taking the woman’s weight into account.

The therapeutic target in case of massive blood loss is to maintain Haemoglobin  greater than 8 gm/dL.