Methods of simultaneous detection of the vitally-essential indices of the hepatic tissue status by injecting neutral red vital dye into the portal vein are described. The liver tissue morphological status, the hepatic cell absorbing capacity, the blood microcirculatory efficacy and the pH shift were assessed on a histological preparation from the liver slice. The dye was extracted from the other portion of the same liver slice and the total amount of the dye absorbed was estimated.
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