Blood group test results

Numéro d’image : 11850609
Blood group test results
Blood group test results. Hand holding a set of centrifuge tubes with four negative (left) and two positive (right) results for a blood group test. The blood was mixed with an antibody to test for an antigen in the blood. If the antibody did react with the antigens on the red blood cells,the red blood cells stick together (agglutinate). The gel (pale blue) then filters out agglutinated cells as the samples are spun rapidly in a centrifuge. The normal red blood cells sink to the bottom of the tubes. Blood is grouped by its antigens so as to prevent potentially fatal immune reactions in the patient who receives the blood. For a sample of blood before centrifuging,see image M530/465
Licence : Droits gérés
Crédit: Science Photo Library / Reeve, Antonia
Taille de l’image : 4540 px × 3107 px
Model Release : Non requis
Property Release : Non requis
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