Urobilinogen. Major difference of gap!

History: vhl case with known renal cysts, simplepancreatic cysts 1-1.5cm , cerebellum Hemangioblastoma bilateral RCC operated - nephron sparing surgery in December 2024 biopsy: negative margins During routine exam with blood test and Urine test: urine analysis showed 10 to 12 puss cells and positive for wbc So repeated from another lab, urine routine and culture which showed culture negative and wbc 1-2 Repeated urine routine from a different lab.. shows wbc again positive and puss cells 3-4. And urobilinogen shows 0.1mg/dl When we did tests in other lab urobilinogen showed normal the latest one showed 0.1mg/dl. Heard tat low urobilinogen has got something to do with bile and obstruction. Google shows 0.1mg/dl as normal but in report they mentioned as not normal. These repeated tests were done within a week and has no major difference of gap