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 Type

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

Results