What is the meaning of urobilinogen weak positive

Urinary urobilogen test is to evaluate the metabolism of bilirubin in the body, bilirubin qualitative test is Harrison method and failure method, salicylate aspirin can cause false positive reaction, in liver parenchyma and obstructive jaundice in urine can show bilirubin, hemolytic jaundice patients in urine auxiliary test bilirubin. Urobilinogen qualitative test has used improved method and failure method, urobilinogen qualitative test must use fresh urine, after a long time urobilin oxidation to urobilin, false negative reaction. Normal person urobilogen qualitative test is positive reaction, urobilogen negative in complete obstructive jaundice, urobilogen increased in hemolytic diseases and liver parenchymal lesions, so urobilogen determination in normal person should be positive reaction, and the interpretation of experimental results needs to be combined with clinical symptoms for comprehensive analysis, in order to obtain correct diagnosis and treatment.