| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
HEPARIN UNFRACTIONATED ANTI-XA, PLASMA
Test CodeLAB30496
CPT Codes
85520
Preferred Specimen
One 3 mL blue top tube
Pediatric Volume: One 1.8 mL blue top tube
Pediatric Volume: One 1.8 mL blue top tube
Minimum Volume
Required for Testing: 1 mL plasma
Instructions
This test is ONLY for patients on unfractionated heparin treatment. Tube must be filled to etched line to perform testing.
Samples must be centrifuged at 3000 rpm for 10 minutes or using a high speed centrifuge. Platelet poor plasma should be aliquoted into 1 mL aliquots.
Courrier Samples: Freeze within 1 hour of collection. Samples must remain frozen during transport. Any samples that are received thawed are not suitable for testing.
Transport Temperature
Frozen (two 1 mL plasma aliquots)
Specimen Stability
Ambient: Unstable Frozen: Freeze plasma in 2 aliquots of 1 mLeach.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolyzed samples, underfilled tube, or clotted sample
Methodology
Chromogenic anti-Xa assay on ACL TOP
Setup Schedule
Sunday-Saturday
Testing is performed upon receipt in the laboratory.
Testing is performed upon receipt in the laboratory.
Reference Range
Unfractionated heparin: Therapeutic range is 0.30-0.70 IU/mL
Performing Laboratory
West Virginia University Hospital, Inc.
Berkeley Medical Center Garrett Regional Medical Center United Hospital Center Wheeling Hospital
