Collect

One 2.7 mL Sodium Citrate (Blue) Tube

Specimen Preparation

Draw one full Sodium Citrate (Light Blue Top tube). Blood-to-anticoagulant ratio is critical. Refer to the 'Hemostasis/Thromobosis Specimen Collection' link below for processing information. Separate platelet-poor plasma from cells ASAP.

Hemostasis/Thrombosis Specimen Collection Guidelines
 

Unacceptable Conditions

  • Aliquot type not properly identified
  • Not Frozen
  • Clotted specimen

Storage/Transport Temperature

1 mL plasma Frozen

Stability (from collection to initiation)

Room Temperature: 4 hours
Frozen: 1 month at -70C

Performed

Sun-Sat

Department

Coagulation

Performed

Sun-Sat

Methodology

Chromogenic

Reference Interval

0 months - 6 months:     44 - 76 %
Greater than 6 months:  83 - 128 %

Interpretive Data

Modest elevations in Antithrombin may be seen with use of an oral anti-coagulant.
Decreases in Antithrombin levels may be seen in congenital Antithrombin deficiency, disseminated intravascular coagulation (DIC), nephrotic syndrome, pregnancy, oral contraceptive or estrogen use, liver disease, and heparin therapy.
 

CPT Codes

85300

Collection

Collect

One 2.7 mL Sodium Citrate (Blue) Tube

Specimen Preparation

Draw one full Sodium Citrate (Light Blue Top tube). Blood-to-anticoagulant ratio is critical. Refer to the 'Hemostasis/Thromobosis Specimen Collection' link below for processing information. Separate platelet-poor plasma from cells ASAP.

Hemostasis/Thrombosis Specimen Collection Guidelines
 

Unacceptable Conditions

  • Aliquot type not properly identified
  • Not Frozen
  • Clotted specimen

Storage/Transport Temperature

1 mL plasma Frozen

Stability (from collection to initiation)

Room Temperature: 4 hours
Frozen: 1 month at -70C

Performed

Sun-Sat

Department

Coagulation

Ordering

Performed

Sun-Sat

Methodology

Chromogenic

Result Interpretation

Reference Interval

0 months - 6 months:     44 - 76 %
Greater than 6 months:  83 - 128 %

Interpretive Data

Modest elevations in Antithrombin may be seen with use of an oral anti-coagulant.
Decreases in Antithrombin levels may be seen in congenital Antithrombin deficiency, disseminated intravascular coagulation (DIC), nephrotic syndrome, pregnancy, oral contraceptive or estrogen use, liver disease, and heparin therapy.
 
Administrative

CPT Codes

85300