*Note - this test is no longer available for hospital-based patients
Preferred
Tube Name
Blue
Optimum Volume
Full
Minimum Volume
Full
Specimen Preparation
Prior to Testing or Freezing, collection tubes must be double centrifuged at a time and speed that results in the production of platelet poor plasma which contains a residual platelet count of <10,000/uL.
Unacceptable Conditions
Serum. EDTA plasma, clotted or hemolyzed specimens &/or improperly labeled or filled collection tube
Storage/Transport Temperature
Whole blood (Spun or Unspun) can be transported or stored at room temperature (18-24 °C) for up to 4 hours. Platelet Poor Plasma Separated from the cells can be transported or stored Frozen at -20°C for up to 2 weeks
Stability (from collection to initiation)
Whole Blood (Spun or Unspun) stored at Room Temperature (18-24°C) for up to 4 hours. Platelet Poor Plasma Separated from the cells and Frozen at -20°C for up to 2 weeks
Cerner Orderable(s)
Antithrombin III Assay
Performed
St. Joseph's Hospital
STAT performed 24/7
ROUTINE performed on day shift. Must arrive before 1100 am for same day result reporting.
Ordering Recommendations
AT3 is the major inhibitor of blood coagulation and is essential for effective Heparin therapy. By inhibiting the coagulation proteases, especially Thrombin, Factor Xa and Factor IXa, AT3 prevents uncontrolled coagulation and thrombosis. AT3 deficiency is associated with a high risk of thromboembolic disorders.
Methodology
Clot detection and Analysis by Spectrophotometric Evaluation
Reported
Within 24 hours.
Synonyms
AT3 Activity
AT3 Activity/Functional
Antithrombin Activity, Plasma
Antithrombin III Activity
Antithrombin III, Functional
AT III Activity
AT III Activity/Functional
Reference Interval
AT3 Reference Interval 83.0 - 128.0%
CPT Codes
85300
Collection
Collect
*Note - this test is no longer available for hospital-based patients
Preferred
Tube Name
Blue
Optimum Volume
Full
Minimum Volume
Full
Specimen Preparation
Prior to Testing or Freezing, collection tubes must be double centrifuged at a time and speed that results in the production of platelet poor plasma which contains a residual platelet count of <10,000/uL.
Unacceptable Conditions
Serum. EDTA plasma, clotted or hemolyzed specimens &/or improperly labeled or filled collection tube
Storage/Transport Temperature
Whole blood (Spun or Unspun) can be transported or stored at room temperature (18-24 °C) for up to 4 hours. Platelet Poor Plasma Separated from the cells can be transported or stored Frozen at -20°C for up to 2 weeks
Stability (from collection to initiation)
Whole Blood (Spun or Unspun) stored at Room Temperature (18-24°C) for up to 4 hours. Platelet Poor Plasma Separated from the cells and Frozen at -20°C for up to 2 weeks
Ordering
Cerner Orderable(s)
Antithrombin III Assay
Performed
St. Joseph's Hospital
STAT performed 24/7
ROUTINE performed on day shift. Must arrive before 1100 am for same day result reporting.
Ordering Recommendations
AT3 is the major inhibitor of blood coagulation and is essential for effective Heparin therapy. By inhibiting the coagulation proteases, especially Thrombin, Factor Xa and Factor IXa, AT3 prevents uncontrolled coagulation and thrombosis. AT3 deficiency is associated with a high risk of thromboembolic disorders.
Methodology
Clot detection and Analysis by Spectrophotometric Evaluation
