Midtrimester amniotic fluid adiponectin in normal pregnancy.

0.0001 by Wilcoxon signed-rank test) and based on the 99th percentile values for each assay, 9 discordances were found between assays for values within the reference interval vs increased values. The ADVIA TnI-Ultra method showed no interference from dilutions with plasma samples that contained high concentration of triglycerides (6.6 g/L, final dilution 1:128; y 0.044 0.14x, n 8, R 0.99) or hemoglobin (1.47 g/L, final dilution 1:4996; y 0.04 0.060x, n 13, R 0.99). No apparent positive interference was seen in 58 patients with symptomatic rheumatoid arthritis [10 men and 48 women, mean (SD) age 60.8 (10.2) years] with a mean concentration of rheumatoid factor of 189.6 kIU/L (range 40–1280 kIU/L), because the mean (SD) cTnI concentration was not increased 0.017 (0.023) g/L. The present study indicates that the ADVIA TnI-Ultra method meets the quality specifications recommended by NACB and IFCC Committee for the Standardization of Cardiac Damage (5 ).