To functional diagnostics of the liver

Abstract

At one time, Roch proposed a test with methylene blue for this purpose: he injected the patients with the last peros in the amount of 2 mg. and watched the appearance of this paint in the urine; in people with a healthy liver, provided that the kidneys are intact, the blue is delayed, and the urine remains unstained, while with a diseased liver, the color of urine becomes more or less greenish-blue.