GSTM1 and hyperlipidemia: Cut-off values of free Hb, bilirubin and triglycerides above which there is significant influence of haemolysis, icterus and lipemia are presented for most commonly used manufacturers of immunochemistry methods. Hb - haemoglobin. CMIA - chemiluminescent microparticle immunoassay. CLIA - chemiluminescence immunoassay. ECLIA - electro-chemiluminescence immunoassay. HPLC - high-performance liquid chromatography. LC-MS/MS - liquid chromatography - tandem mass spectrometry.