FIELD: medicine.
SUBSTANCE: invention refers to medicine, particularly to immunology and clinical laboratory diagnostics, and aims at detecting extracellular DNA in whole peripheral blood. Fixed smear is stained with azur-eosin Romanovsky diluted 1:9, maintained for 10–20 minutes, washed with phosphate buffer, dried in air. Leukocytes and extracellular DNA networks are detected. That is followed by counting 100 structures of different neutrophil groups, extracellular DNA networks, segment nuclear neutrophils, nuclear neutrophils, young (metamyelocytes) and calculating the percentage of each morphological unit.
EFFECT: invention enables clearly visualizing chromatin.
1 cl, 5 dwg, 2 ex
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