It is known that each individual has a variety of affections, one affection when in joy, another when in grief, another when in sympathy and compassion, another when in sincerity and truth, another when in love and charity, another when in zeal or in anger, another when in simulation and deceit, another when in quest of honor and glory, and so on.
This deficiency can make you feel tired: this is why, as well as asking male donors to wait 12 weeks and female donors to wait 16 weeks to donate whole blood, we also test your haemoglobin levels every time you give. We make sure that your haemoglobin level is above 125g/l for women and 135g/l for men.
1 The blood is separated into transfusable components â red cells, plasma, platelets and/or cryoprecipitated AHF. 2  This type of blood donation usually takes about an hour, though the actual donation takes about 8-10 minutes. 3  You are eligible to donate 'whole blood' every 56 days. This type of blood donation usually takes about an hour, though the actual donation takes about 8-10 minutes. 2  You are eligible to donate 'whole blood' every 56 days.