External Quality Control of Cervical Cytopathology: Interlaboratory Variability
نویسندگان
چکیده
منابع مشابه
External quality control of cervical cytopathology: interlaboratory variability.
OBJECTIVE To compare the variability of screening tests held at laboratories with the Unit for External Quality Control (UEQC), checking the frequency of cases that were discordant, false-positive, false-negative, unsatisfactory or that had a delay in clinical management and diagnostic agreement. MATERIALS AND METHODS The study analyzed 10,053 screening tests from January 2007 to December 200...
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For 7 months, serum samples reflecting high, normal, and low physiologic values were distributed to five laboratories for sodium, potassium, and calcium analyses. Following recalibration of instruments and required repairs, quality control programs were initiated and additional serum samples were analyzed. The results were collected and statistics calculated to determine improvement, if any, in...
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During an 8-month study, 14 laboratories used automated analytical systems to measure total bilirubin concentrations in lyophilized bovine specimens containing 38, 169, and 253 micromol/L bilirubin (2.2, 9.9, and 14.8 mg/dL, respectively). The measured mean +/- SD (n, range) were: 39 +/- 7 micromol/L (n = 90, 31-53) [2.3 +/- 0.4 mg/dL (1.8-3.1)]; 176 +/- 29 micromol/L (n = 89, 146-222) [10.3 +/...
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ژورنال
عنوان ژورنال: Acta Cytologica
سال: 2013
ISSN: 1938-2650,0001-5547
DOI: 10.1159/000353843