Quantitative Estimation of Urinary Sediment, with Special Regard to Sources of Error

Gadeholt, Hermod

doi:10.1136/bmj.1.5397.1547

Cited by 91 publications

(32 citation statements)

References 16 publications

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“…We rec ommend that centrifugation is performed on a fixed vol ume of urine for the same number of rotations per minute (rpm). The best recovery of the elements is obtained after a centrifugation of 5 min at 2.500 rpm [38]. After centrif ugation.…”

Section: Detection Of Microscopic Hematuriamentioning

confidence: 99%

“…The use of a standardized method for handling the samples is also important. In fact, an unacceptable variability in repeated analyses on the same sample has been observed when the urine sedi ment is prepared in a nonstandardized way [38]. We rec ommend that centrifugation is performed on a fixed vol ume of urine for the same number of rotations per minute (rpm).…”

Section: Detection Of Microscopic Hematuriamentioning

confidence: 99%

See 1 more Smart Citation

Microscopic Hematuria Diagnosis and Management

Fogazzi¹,

Ponticelli²

1996

Nephron

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Section: Detection Of Microscopic Hematuriamentioning

confidence: 99%

Section: Detection Of Microscopic Hematuriamentioning

confidence: 99%

Microscopic Hematuria Diagnosis and Management

Fogazzi¹,

Ponticelli²

1996

Nephron

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“…In the laboratory, changes in the urine sample and in the reagent test strip can be prevented (2,14,15). Observational errors are much more difficult to control.…”

mentioning

confidence: 99%

The Reproducibility of Urinalysis Using Multiple Reagent Test Strips

Winkens¹,

Leffers²,

Degenaar³

et al. 1991

Clinical Chemistry and Laboratory Medicine

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Summary: Ninety urine samples were examined twice by 3 "observers" (two persons, using only visual observation, and one person using a spectrophotometric analyser) using multiple reagent teststrips. To determine reproducibility, inter-and intra-observer agreement were calculated and expressed s Cohen's kappa and s weighted kappa.The results show negligible intra-observer differences between the visual and spectrophotometric observation. The lack of agreement between inter-and intra-observer urinalysis results, using multiple reagent test Strips was disappointing, considering the simplicity of the test procedure. Further improvement of reproducibility, e. g. by enhancing the discoloration of the test pads, is necessary. Reproducibility is not improved by using a spectrophotometric analyser instead of visual reading of the test Strips.

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“…There were no significant differences between paired spun and unspun specimens with regard to pus cell counts (Gadeholt, 1964) …”

Section: Resultsmentioning

confidence: 73%