[Double protein-cerebrospinal fluid test for the identification of blood contaminants in bloody cerebrospinal fluid].

Results of determining the total protein level in the cerebrospinal fluid (CSF) were used for the first time for identifying the character of the blood presence in a blood-containing fluid. A new, so-called double protein-CSF test is offered. For performing this test approximately equal volumes of the fluid are placed in a series (but not less than three) test-tubes. The results of determining the total protein content in the first and the last portions of the CSF are compared. If there is a pathological admixture of blood in the CSF the increase of the protein content in the first and the last portions will be identical, whereas in cases of artifact admixtures the protein content in the last portion is lower by no less than one third.