Anti-Factor Xa (for Low Molecular Weight Heparin) AFXLOV
Method(s) | Chromogenics |
---|---|
Specimen Required | |
Collect | One adequately filled 3.0 mL light blue (sodium citrate) top tube. For specimens that cannot be shipped to the laboratory to arrive within 4 hours of collection, see Collection and Processing of Coagulation Specimens information (link below). |
Transport | **TIME SENSITIVE** For specimens that cannot be shipped to the laboratory to arrive within 4 hours of collection, see Collection and Processing of Coagulation Specimens information (link below). |
Remarks | Draw blood into citrate tube (light blue top) filled to the proper level (1 part anticoagulant to 9 parts blood). Invert tube 3-4 times to avoid clotting. |
Stability | Ambient; Refrigerated Plasma : 4 hours; Frozen Plasma: 2 weeks |
Unacceptable Conditions | Specimens that are clotted, hemolyzed, collected in the wrong tube, less than 90% filled, exceed the stability limits, or non-frozen plasma are unacceptable for testing. |
Schedule | Mon-Fri (08:00 to 15:00) |
Billing Code | 4010097 |
CPTCode | 85520 |
Notes | Platelet-poor plasma must be frozen within 4 hours of collection into 2 plastic aliquot tubes. To obtain platelet-poor plasma, centrifuge tube, remove plasma, re-centrifuge tube, place into 2 plastic tubes, and freeze. |
Preferred Specimen Collection Device(s) | |
Reference Interval | |
See Laboratory Report. |