[A new rapid test for diagnosing micro-haematuria, compared with results of microscopic examination]

Micro-haematuria may be difficult to diagnose because the usual sediment methods may be inadequate and test strips may in practice not be sensitive enough. The demarcation between normal and pathological RBC excretion is, therefore, not always clearly established. A new test strip (Sangur-Test) has its lower limit of positive results at 1 000 RBC/ml urine and physiological ranges of RBC excretion could be distinguished from micro-haematuria with satisfactory accuracy. Comparative tests of 637 freshly voided urine specimens in routine diagnosis produced no false-negative results and in only a small percentage of cases recorded a higher RBC concentration than the ten-field sediment method.