Which is a requirement for blood donation candidates?

The requirement that candidates for blood donation must be in overall good health is crucial because it ensures the safety of both the donor and the recipient. Donors who are not in good health may experience adverse effects from the donation process, such as fainting or excessive bleeding, and there is also a risk of transmitting infections through blood if the donor has any undiagnosed health conditions.

Being in overall good health encompasses various aspects, including an absence of acute illnesses, chronic conditions that may affect blood quality, and certain infectious diseases. It is part of the standard screening process that assesses a donor's eligibility before allowing them to give blood. This ensures that the blood collected is safe for transfusion and helps maintain a reliable supply of healthy blood for patients in need.

While age, weight, and blood pressure are also common considerations in blood donation criteria, being in overall good health is fundamental and takes precedence, as it directly relates to the immediate wellbeing of the donor as well as the safety of the blood supply.