Vasovagal Reactions in Blood Donors

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Abstract
The donor records of a hospital blood bank, analyzed from a statistical standpoint, demonstrated a low incidence of vasovagal reactions: 119 in 10,547 donations (1.13%). Donors of younger age and of lower diastolic blood pressure were more prone to reaction. There was no significant sex difference. Higher reaction rates were also associated with first‐time donation, the time of year (spring), and a particular phlebotomist. The low reaction rate and the clearly demonstrated psychologic factors in the present study were attributed to a reflection of the small amount (200 ml) of blood withdrawn. The importance of the phlebotomist‐donor relationship was stressed.