Article Text

Download PDFPDF

A blue catalase screening test for pyuria and haematuria
  1. Mair Thomas,
  2. Gillian Baldwin
  1. Epidemiological Research Laboratory, Central Public Health Laboratory, Colindale, London
  2. Elizabeth Garrett Anderson Hospital, London


    The blue catalase test is easy to perform and economical of materials. In a series of 529 adult female hospital patients it appeared to be a good screening test for pyuria and haematuria, detecting all but one of the specimens examined with more than 20 red and white cells combined per cubic millimetre of urine and 95·2% of those with more than 10 cells. It indicates a raised leucocyte or red cell excretion rate but is not a test for bacteriuria.

    Statistics from

    Request Permissions

    If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.