Accreditation of HLA tests and an external quality control program

2009 ◽  
Vol 42 (4-5) ◽  
pp. 320
Author(s):  
Fatma Savran Oguz
Keyword(s):  
Quality Control ◽  
Control Program ◽  
External Quality Control ◽  
External Quality ◽  
Quality Control Program

scholarly journals Implementation and evaluation of a National External Quality Control Program for Cervical Cytology in Mexico

2002 ◽  
Vol 44 (5) ◽  
pp. 431-436 ◽  
Author(s):  
Ana Flisser ◽  
Felipe García-Malo ◽  
María de los Angeles Canepa ◽  
Susana Doncel ◽  
Raquel Espinoza ◽  
...  
Keyword(s):  
Quality Control ◽  
Control Program ◽  
Cervical Cytology ◽  
External Quality Control ◽  
External Quality ◽  
Quality Control Program

Radioimmunoassay of progesterone in unextracted serum.

1980 ◽  
Vol 26 (11) ◽  
pp. 1607-1609 ◽  
Author(s):  
S P Haynes ◽  
J M Corcoran ◽  
C J Eastman ◽  
F A Doy
Keyword(s):  
Quality Control ◽  
Control Program ◽  
High Concentration ◽  
External Quality Control ◽  
External Quality ◽  
Quality Control Program ◽  
Serum Progesterone ◽  
Organic Solvent Extraction ◽  
Assay Time ◽  
Assay Precision

Abstract We describe a rapid, precise radiommunoassay for progesterone in 25 muL of unextracted serum. Progesterone is released from its binding protein by adding an optimal amount of cortisol, which binds to the same protein (cortisol binding globulin) as progesterone. The amount of cortisol required does not cross react with the specific progesterone antibody used. This approach considerably shortens assay time and removes a tedious and imprecise stage in the conventional assay of serum progesterone. Results correlated well (r = 0.97) with a method involving organic solvent extraction of progesterone from serum. During the two years we have used this method in a busy diagnostic endocrine laboratory, the between-assay precision (CV) for low-, medium-, and high-concentration quality control sera was 12, 7, and 9%, respectively. Data from participation in an independent external quality-control program verified the adequacies of the method.

scholarly journals Do gender differences exist in pacemaker implantation?--results of an obligatory external quality control program

EP Europace ◽  
2009 ◽  
Vol 12 (2) ◽  
pp. 210-215 ◽  
Author(s):  
B. Nowak ◽  
B. Misselwitz ◽  
A. Erdogan ◽  
R. Funck ◽  
W. Irnich ◽  
...  
Keyword(s):  
Gender Differences ◽  
Quality Control ◽  
Pacemaker Implantation ◽  
Control Program ◽  
External Quality Control ◽  
External Quality ◽  
Quality Control Program

Interlaboratory evaluation of salicylate interference in colorimetric acetaminophen methods and its clinical significance.

1985 ◽  
Vol 31 (7) ◽  
pp. 1158-1162 ◽  
Author(s):  
R W Jenny
Keyword(s):  
Quality Control ◽  
Clinical Significance ◽  
Correction Factor ◽  
Half Life ◽  
Laboratory Data ◽  
Control Program ◽  
Hepatic Necrosis ◽  
External Quality Control ◽  
External Quality ◽  
Quality Control Program

Abstract Serum specimens with concentrations simulating an overdose of salicylate and acetaminophen were submitted to laboratories participating in an external quality-control program, to evaluate both the magnitude of salicylate interference in colorimetric acetaminophen methods and the clinical significance of the interference. The apparent acetaminophen concentration determined by nitration methods was increased by about 0.70 mg/L per milligram of salicylate per deciliter. Of those laboratories using nitration procedures, 25% do not routinely correct for salicylate and 66% use the (incorrect) correction factor provided by a kit manufacturer. Laboratory data, as they would have been reported to physicians, were used to estimate the acetaminophen half-life and were also applied to a nomogram used to assess the probability of hepatotoxicity. Interference by salicylate in the simulated overdose of 10 g (total dose) of each drug falsely indicated impending hepatic necrosis unless the appropriate correction factor was used. Laboratories using nitration procedures should screen samples submitted for acetaminophen assay for the presence of salicylate and, if present, either use a method specific for acetaminophen or utilize a correction factor determined in-house.

scholarly journals Bioassay for Determining Voriconazole Serum Levels in Patients Receiving Combination Therapy with Echinocandins

2015 ◽  
Vol 60 (1) ◽  
pp. 632-636 ◽  
Author(s):  
Maria Siopi ◽  
Efthymios Neroutsos ◽  
Kalliopi Zisaki ◽  
Maria Gamaletsou ◽  
Maria Pirounaki ◽  
...  
Keyword(s):  
Quality Control ◽  
Combination Therapy ◽  
High Performance ◽  
Rank Correlation ◽  
Control Program ◽  
External Quality Control ◽  
Serum Samples ◽  
External Quality ◽  
Quality Control Program ◽  
Content Type

ABSTRACTVoriconazole levels were determined with high-performance liquid chromatography (HPLC) and a microbiological agar diffusion assay using aCandida parapsilosisisolate in 103 serum samples from an HPLC-tested external quality control program (n= 39), 21 patients receiving voriconazole monotherapy (n= 39), and 7 patients receiving combination therapy (n= 25). The results of the bioassay were correlated with the results obtained from the external quality control program samples and with the HPLC results in sera from patients on voriconazole monotherapy and on combination therapy with an echinocandin (Spearman's rank correlation coefficient [rs], > 0.93; mean ± standard error of the mean [SEM] % difference, <12% ± 3.8%).

scholarly journals External quality control program for semen analysis: Spanish experience

2005 ◽  
Vol 22 (11-12) ◽  
pp. 379-387 ◽  
Author(s):  
C. Álvarez ◽  
J. A. Castilla ◽  
J. P. Ramírez ◽  
F. Vergara ◽  
A. Yoldi ◽  
...  
Keyword(s):  
Quality Control ◽  
Semen Analysis ◽  
Control Program ◽  
External Quality Control ◽  
External Quality ◽  
Quality Control Program
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