Frequently Asked Questions


Why is one not allowed to donate blood before attaining the age of 18 years ?
Physiologically there is no harm if one satisfies otter conditions for blood donation. 18 being the age of consent in our county, the reason is legal.
Can one donate blood if one's body weight is less than 45 kg?
No, you probably cannot. Most blood banks require the donor to be above 50 kg in weight. Blood banks these days take their donors’ health very seriously. There is no point in jeopardizing someone’s health when it is not so difficult to find an alternative healthy donor.
Who can give blood?
Please view the Eligibility on SBTC Home Page.
WhoIs there any chance of contracting blood communicable disease by donating blood ?
Many viruses, bacteria and protozoa can be transmitted by transfusion and new agents that potentially can be transmitted through transfusion continue to emerge. WHO recommends that, at a minimum, screening of all blood donations should be mandatory for the following infections and using the following markers like HIV-1 and HIV-2, Hepatitis B, Hepatitis c etc.
Why blood is not collected from a person having a haemoglobin content of less than 12.5 gm/l00ml ?
Blood with less Hb content than the prescribed (12.5gm/100ml) does not help the patient much in carrying oxygen to cells.
What diet should I follow if I am deciding to donate blood ?
Maintain a healthy iron level in your diet by eating iron rich foods, such as red meat, fish, poultry, beans, spinach, iron-fortified cereals,vagetable and raisins.
Can I exercise before donating blood ?
Avoid doing any vigorous exercise or heavy lifting the day of your donation – both before and after you've given blood. Keeping your body in a rested state is important to give it a chance to replenish the fluids lost during donation, which will help you avoid feeling dizzy or lightheaded and keep you well.
I am feeling a bit nervous!
Why? don't nurvous, go any blood camp and meet with a consultant where motivators ready to help you.
Is there anything I need to carry with me while going for blood donation?
Please carry a Identity card in which your date of birth is mention.
What should I eat before going for a blood donation ?
You can eat normal diet as you taken in daily routine but it should be a healthy food.
What laboratory tests are performed in blood bank for each bag of collected blood ?
At each donation, the following mandatory tests are performed:
  • Hepatitis B – HBsAg
  • Human immunodeficiency virus – anti-HIV 1 and 2 and HIV NAT (nucleic acid testing)
  • Hepatitis C – anti-HCV and HCV NAT
  • Syphilis – syphilis antibodies.
  • Malarial antibodies
  • and some othe test Contact to a blood center
Why the above laboratory tests are not performed before donation ?
They are time consuming tests, and if performed in camp before donation, there will be excessive delay in disposal of donors, and the disgusted donors may leave the camps and refrain from donating blood for ever.
How long can blood be preserved in a blood bank ?
We can store blood for 42 days if we do not freeze it. Frozen blood can be stored ten years, but freezing blood is a poor way of storing it. Generally speaking, we store blood in the refrigerator, where we can store it for up to 42 days.Please view Donation Process link on SBTC home page
How much blood do you take in blood donation camp ?
During a regular donation, you will give around 470 ml of whole blood. This is about eight per cent of the average adult's blood volume. The body replaces this volume within 24 to 48 hours, and replenishes red blood cells in 10 to 12 weeks.
What is the liquid in the bag into which the blood is taken ?
It is called anti-coagulant and prevents the blood from clotting.
How often can one give blood ?
  1. Most people can donate whole blood every 56 days. This is the most common type of blood donation.
  2. Most people can donate red blood cells every 112 days.
  3. You can typically donate platelets once every 7 days, up to 24 times a year.
  4. You can typically donate plasma every 28 days, up to 13 times a year.
  5. If you give multiple types of blood donations, this will lower the number of donations that you can give per year.
Is blood donation very painful ?
You may experience pain when the needle is inserted into your arm. You shouldn't feel any pain while the blood is being drawn, but you may experience an uncomfortable sensation at the site where the needle is inserted into your arm.
What is AIDS? Is there any chance of contracting AIDS by donating blood ?
HIV (human immunodeficiency virus) is a virus that attacks cells that help the body fight infection, making a person more vulnerable to other infections and diseases. It is spread by contact with certain bodily fluids of a person with HIV, most commonly during unprotected sex (sex without a condom or HIV medicine to prevent or treat HIV), or through sharing injection drug equipment.
These are not proven cases of the virus being transmitted through blood transfusion.
Does the blood group of a particular person change with time ?
Almost always, an individual has the same blood group for whole life, but very rarely an individual's blood type changes through addition or suppression of an antigen in infection, malignancy, or autoimmune disease. Another more common cause of blood type change is a bone marrow transplant.
what is rh factor in blood ?
Almost always, an individual Rhesus (Rh) factor is an inherited protein found on the surface of red blood cells. If your blood has the protein, you're Rh positive. If your blood lacks the protein, you're Rh negative. Rh positive is the most common blood type.
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