Additional Information | In men, haemoglobin concentrations in excess of 180 g/l or red cell counts in excess of 6.5 x 1012 and in women, haemoglobin concentrations in excess of 165 g/l or red cell counts in excess of 5.6 x 1012 should be repeated. If found to be persistently raised the donor should not be accepted and referred for investigation.
Polycythaemia is commonly linked to malignant or pre-malignant conditions or to the body's response to a shortage of oxygen. Apparent polycythaemia is caused by a decreased plasma volume. All of these are reasons not to accept a donation, either because of the association with malignancy, or because of the potential to harm the donor.
Individuals with 'high affinity' haemoglobins can develop polycythaemia because of the reduced oxygen carrying capacity of their blood. This would be detrimental to a recipient of their blood and donation may be harmful to the donor. For these reasons they should not be accepted |