Blood-stained Urine

Glass container with dark-red stained urine from a 8.6-year-old boy. It is from a hematuria following a blunt renal injury. For a safe differentiation between hematuria and discoloration of the urine by drugs or food, or by hemo- or myoglobinuria, an examination of the urine deposit is neccessary. Less than 3 erythorcytes per visual field, or less than 10 erythrocytes per cubic millimeter are normal.