NBTS describes the five-step process as about 35–45 minutes, excluding any wait if persons are ahead of you. Donors should generally reserve 45 minutes to 1 hour for the full visit.
National Blood Transfusion Service
Frequently Asked Questions
Clear answers to common questions about blood donation, eligibility, safety and what to expect when you visit NBTS.
The empty blood pack has its own needle. Once it is used, it is discarded. The venipuncture site is cleaned with a sterile solution before donation.
Persons in good health can generally donate blood every three months.
A donor may be deferred because of low haemoglobin, medication being taken, miscarriage within the past six months, recent skin piercing or tattoos, cancer, diabetes, or blood-borne infections and diseases such as HIV/AIDS.
No. You should have a balanced meal before donating. Iron-rich foods, including green leafy vegetables such as callaloo, green beans, spinach, lettuce and cabbage, are important for blood production.
Yes. A unit of blood may be separated into several parts to meet different patient needs. Platelets, red cells and other components can support different patients.
No. There is no risk of getting AIDS or another disease from giving blood. A brand new needle is used for each donation and destroyed after use.
Most donors do not feel different after donating. NBTS recommends continued fluid intake over the next 48 hours to help the body fully restore itself.
Date modified: 2026-07-05