Specimen recentrifugation and elevated troponin i levels

Abstract

Objective: To compare troponin I levels in plasma before and after specimen recentrifugation. Methods: Over a period of 24 consecutive days, we recentrifuged 189 plasma specimens in which the troponin I level was higher than the positivity cut off (60 ng/L) and then remeasured the troponin I. Results: Two-tailed Wilcoxon matched-pairs test results identified a statistically significant difference between troponin I concentrations before and after recentrifugation (P