Procedure of venepuncture for blood donation and arterial blood sampling.

Blood banks use various processes to prevent infections that can be transmitted by blood donation. One important measure to prevent infection is to recruit donors from populations that are known to have low rates of infection for blood borne diseases, such as voluntary, unpaid donors and people with no history of intravenous drug use. A second measure is to ask donors a series of additional screening questions (these will vary by region) to help identify those who may be at higher risk of infection. Phlebotomists must