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.

No Appointment Necessary
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11 Patient Service Centers in Central New York.

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