Inpatient and Outpatient Orderable

Antithrombin III (AT III) Activity/Antigen with Reflex Build info

Synonyms

  • AT III ACTIVITY/ANTIGEN WITH REFLEX
  • AT3 FUNCT
  • LAB10675

Short Name

AT III ACTIVITY/ANTIGEN WITH REFLEX

Procedure Master Number

LAB10675

Procedure ID

114044

Clinical Info

Specimen Sources

 Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

 Blood

Container

Blue Top Tube (HNAC 96)

Collection Instructions

Draw blood in a light blue-top (3.2% sodium citrate) tube(s). Fill tube(s) completely. Invert several times to mix blood. Spin down and place 1 mL of citrated plasma into 2 plastic vials each containing 0.5 mL of citrated plasma.
Note:  1. If no other tube is drawn, draw a discard tube.
2. If there is a delay in transport, spin down, remove plasma, spin plasma again, and place 1 mL of platelet-poor plasma into 2 plastics vials each containing 0.5 mL of platelet-poor plasma. Send specimen frozen. Double-centrifuged specimens are critical for accurate results as platelet contamination may cause spurious results.

Transport Instructions

Specimen Stability

Methodology

Chromogenic-ACLTop Beckman/Coulter/IL

Days Performed

One to 2 times per week

Performing Laboratory

Northwell Health Laboratories

CPT

85300 Activity
85301 Antigen
Loinc Codes
Activity: 27811-9
Antigen: 27812-7

PDM

 5302580

Only Orderable at Locations:

 Orderable Everywhere

Results
Component Name Base Name Common Name External Name
ANTITHROMBIN III ASSAY WITH REFLEX AT3 ANTITHROMB III Antithrombin Iii Assay With Reflex