There are also tests in which a quantity of blood is withdrawn in order to tag it or to mix it with medicine, whereupon it is put back into the patient.
Pastāv arī analīzes, kuru vajadzībām tiek ņemts asins paraugs, ko pēc tam apzīmē ar etiķeti vai samaisa ar kādu medikamentu un ievada atpakaļ pacienta organismā.