Urobilinogen

Normal urobilinogen range in urine

• less than 17 umol/l (< 1mg/dl)

Urobilinogen measuring range

• 0 - 8 mg/dl

Levels of urobilinogen in the urine

• In the intestines bacteria form urobilinogen from bilirubin
• This is then absorbed and passes to the liver and urine

Abnormal urobilinogen values may indicative of

• Increased values
• Overburdening of the liver
• Excessive RBC breakdown
• Increased urobilinogen production
• Re-absorption - a large hematoma
• Restricted liver function
• Hepatic infection
• Poisoning
• Liver cirrhosis
• Low values
• Failure of bile production
• Obstruction of bile passage

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