Whole blood is what most people picture. But your one body can give in four different ways — and each way helps a different patient.
1. Whole blood (the standard)
350-450 mL, 8-10 minutes, every 90/120 days. The classic arm-bag donation. Your unit is later separated into red cells, plasma and sometimes platelets — so one whole-blood donation can quietly help up to three patients. This is what 95% of Indian donation is, and what almost every camp collects.
2. Double red cell (“Power Red” in US branding)
A machine takes two units of red cells and returns your plasma and platelets. Takes longer (~30 min of collection), needs a higher weight and haemoglobin, and the interval is longer. Great for O−/O+/A− donors in places that offer it — in India, available only at equipped apheresis centres.
3. Platelet apheresis
The machine draws blood, keeps only the platelets, returns everything else. Takes 60-90 minutes. This is the dengue-season lifeline — cancer and dengue patients need platelets that expire in 5 days, so they need them constantly. Regular platelet donors are the rarest, most valuable donors on any register.
4. Plasma apheresis
The machine keeps the plasma (the liquid with clotting factors), returns your cells. Plasma goes to burns, liver patients, clotting disorders. AB plasma is universal.
Which should you do?
Whatever your nearest equipped centre asks for. Start with whole blood — it is the entry point for everything — and if you are a reliable regular, ask the centre about apheresis. India needs every type.