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The value of the one minute leucocyte esterase-nitrite chemical strips as a screening procedure for detecting appreciable levels of pyuria and bacteriuria was assessed by comparison with microscopy and culture results. The likelihood that a negative leucocyte esterase result indicated less than 10 white cells/cu mm by microscopy (the negative predictive value), was 90.1% and that a negative nitrite result indicated less than 10(5) organisms/ml was 91.3%. There were many false positive results with both tests, however, and the overall predictive value of a positive leucocyte esterase or nitrite test, or both, was low. The leucocyte esterase-nitrite strip was neither sufficiently sensitive nor specific enough to be used as a cost effective method for screening urines in the laboratory.
E G Wilkins, and
J G Ratcliffe, and
C Roberts
August 1988,
The Malaysian journal of pathology,
E G Wilkins, and
J G Ratcliffe, and
C Roberts
February 1993,
Annals of internal medicine,
E G Wilkins, and
J G Ratcliffe, and
C Roberts
February 1993,
Annals of internal medicine,
E G Wilkins, and
J G Ratcliffe, and
C Roberts
December 1985,
Virginia medical,
E G Wilkins, and
J G Ratcliffe, and
C Roberts
September 1993,
Journal of clinical pathology,
E G Wilkins, and
J G Ratcliffe, and
C Roberts
June 1967,
Archives of disease in childhood,
E G Wilkins, and
J G Ratcliffe, and
C Roberts
January 1985,
Giornale di batteriologia, virologia ed immunologia,
E G Wilkins, and
J G Ratcliffe, and
C Roberts
July 1982,
Lancet (London, England),
E G Wilkins, and
J G Ratcliffe, and
C Roberts
January 1977,
Acta paediatrica Academiae Scientiarum Hungaricae,
E G Wilkins, and
J G Ratcliffe, and
C Roberts
February 1967,
Lancet (London, England),
