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This application is a service of the Singapore Government.

Health Sciences Authority

Patients' Needs

The amount of blood or blood components required by just one patient can be massive.

The table below highlights the amount of blood products needed by a single patient with the following conditions:

Medical Condition Average Number of Units Needed Per Patient
Thalassemia 3 to 4 red cell units per month 
Coronary Artery Bypass Graft (CABG) 2 to 3 red cell units 
Cancer Treatment

1 red cell units and 1 adult dose platelet unit daily

Stem Cell Transplant 1 red cell unit and 1 adult dose platelet unit daily 
Road Traffic Accident  8 red cell units
Gastrointestinal Bleed  6 red cell units
Liver Transplant 10 red cell units