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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
Dengue Haemorrhagic Fever 3 to 4 adult dose platelet units 
Thalassemia 3 to 4 red cell units per month 
Coronary Artery Bypass Graft (CABG) 2 to 3 red cell units 
Cancer Treatment

3 to 4 units of red cells per week
3 to 4 adult dose platelet units per week

Stem Cell Transplant 3 to 4 units of red cells per week
3 to 4 adult dose platelet units per week
Road Traffic Accident  8 red cell units
Gastrointestinal Bleed  6 red cell units
Liver Transplant 10 red cell units