Home
HelpTest Code ATIII ANTITHROMBIN III, PLASMA
Additional Codes
| Software | Test Code |
|---|---|
| Label Text | ATIII |
| EPIC | LAB311 |
Performing Laboratory
NorDx Laboratories
Useful For
The detection of thrombosis
Method Name
Synthetic Substrate (Chromogenics)
Reference Values
75 -132 %
Days and Times Test Performed
1 day weekly
(Typically Wednesday)
Report Available
1 Week
Specimen Type
Plasma
Preferred Container
Light Blue Top Tube (Sodium Citrate) – Tube must be full at time of collection.
Specimen Collection and Handling
Collect specimen as follows:
1. Draw blood in light blue-top (3.2% sodium citrate) tube(s). Tube(s) must be full upon collection.
2. Separate plasma from cells as soon as possible within 4 hours of collection in a centrifuge at 2,500 rpm for 15 minutes or 3,000 rpm for 10 minutes.
3. Using a plastic transfer pipette (do not use a glass pipette) decant the plasma to a screw-capped, plastic (polypropylene) vial. Glass vials will not be accepted.
4. Spin the plasma again at 2,500 rpm for 15 minutes or 3,000 rpm for 10 minutes. Note: Double spinning the specimen ensures platelet poor plasma (<10,000 uL)
5. Divide the plasma into as many 0.5-1.0 mL aliquots as possible and cap the vial(s) tightly.
6. Place tubes upright and flash freeze specimen(s) immediately at ≤ – 20° C or below.
7. Send specimen(s) FROZEN on dry ice.
Click here to view the Procedure for Collecting a Specimen from an A-line
Specimen Stability Information
Specimen Type: Plasma
Room Temp: 4 Hours
Note: Whole blood that remains capped and unspun is stable for up to 4 hours when stored at room temperature (18 – 24°C). Frozen plasma is stable 2 weeks @ -20°C and 12 months @ -70°C. Blue top tubes for coag assays must not be refrigerated or placed on ice.
Add On Capable
Yes
Advance Beneficiary Notice Requirements
No ABN Required
CPT Code Information
|
CPT Code |
CPT Description |
CPT Disclaimer |
|---|---|---|
| 85300 | Clotting Inhibitors or Anticoagulants, Antithrombin III, Activity |
Keywords
ATIII (ANTITHROMBIN III)
Performing Laboratory Location
NorDx Laboratories
LOINC Code Information
27811-9
Rejection Information
Under filled (<90 %), clotted, or grossly hemolyzed.
Note: Patients with a Hematocrit >55% will require recollection in a citrate-adjusted tube.