laboratory diagnostic - tumor markers - TPA - Tissue Polypeptide Antigen, non haemolysed serum 1ml. The serum must be frozen within 4 hour after collection and must be sent in the frozen samples container(!).Centrifuge without delay, separate the supernatant and freeze. 1 specific aliquot for this analysis. Please label the request in words and do not use abbreviations. Not to be confused with tPA - Tissue Plasminogen Activator, Chemiluminescence, ssso, todylaboratories®, bmn, code L76LD2158