Urobilinemia is the selection of urobilin with urine (in the rate of 2-4 mg per day).
Urobilinemia gets the value of a pathological symptom while increasing the content of urobilin in the urine. Tests commonly used for detection of urobilin, open the product group recovery of bilirubin - stercobilin (see), stercobilinogen, the urobilin (see), urobilinogen. Almost all of these substances define and indicate the total under the General name urobilin. The content of urobilin in the urine may increase when liver and increased hemolysis. The lack of urobilin in urine occurs if complete blockage of bile ducts and sometimes at the height of jaundice at epidemic hepatitis.
Positioning methods. Sample Bogomolova - see Urine (research). Sample Schlesinger. To 4-5 ml of urine add an equal number of pre shaken up reagent Schlesinger (10% suspension acetate zinc in 96% alcohol) and 1 drop of Lugol solution. After 10 minutes filtered. When viewed filtrate on a dark background in the reflected light in the presence of urobilin visible green fluorescence. Sample Floransa. To 8-10 ml of urine add 3-4 drops of sulfuric acid and 3-4 ml of ether. Closing tube tube, roll her over the table to get an ether extract. Last suck a pipette and layer to another tube on strong hydrochloric acid. In the presence of urobilin at the liquid is formed red ring of different intensity.
Samples Bogomolov and Schlesinger can only be detected high concentrations of urobilin urine sample Floransa (as more sensitive) positive and normal content of urobilin in urine, what is important for ascertaining the total absence of urobilin in the urine.