Protein S activity

Company Reagent Link to information Remarks
American Diagnostica Protein S

Method: Clotting

Assay principle: Measurement of free protein S

Interferences: Heparin > 1.2 U/mL or lupus and the presence of factor V Leiden mutation in the patient

BioMedica Diagnostics ACTICLOT Protein S

Method: Clotting

Helena Laboratories Protein S Method: Clotting
Hyphen BioMed Hemoclot Protein S Hyphen Hemoclot protein S

Method: Clotting

Assay principle: APTT based, triggered by Factor IXa in the presence of APC

Interferences: Heparin > 1.0 IU/ml, interference expected from abnormal high levels of FVIII:C, Lupus, FV Leiden and in aprotinin treated patients

Instrumentation Laboratory, Werfen HemosIL Protein S Activity IL HemosIL Protein S Activity

Method: Clotting

Assay principle: Measurement of free protein S

Interferences: Heparin UF > 1.6 IU/ml and heparin LMWH > 2.1 IU/ml

Precision Biologic Cryocheck Clot S Precision Biologic Cryocheck Clot S

Method: Clotting

Assay principle: Measurement of free protein S

Interferences: Factor VIII:C levels >600% and unfractionated heparin/ low molecular weight heparin > 1.0 IU/ml

r2 Diagnostics  Thrombo Tek PSe r2 Diagnostics Thrombo Tek PSe Method: Clotting

Assay principle: Measurement of free protein S

Interferences: Heparin > 1.0 IU/ml

Reanal-Ker Bioclot Protein S-220 ACT
Siemens Healthineers Protein S Ac Siemens Protein S Ac Method: Clotting

Assay principle: Measurement of free protein S

Interferences: Heparin > 3.0 IU/ml andFactor VIII:C levels >400%

Stago  STA-Staclot Protein S Stago STA-Staclot ProteinS

Method: Clotting

Assay principle: Measurement of free protein S

Stago, Tcoag TriniCLOT Protein S II Stago TriniCLOT Protein S II

Method: Clotting

Assay principle: Measurement of free protein S

Technoclone Technoclot Proetein S Technoclone Technoclot Protein S

Method: Clotting