Heparin Assay (Unfractionated Heparin Anti Xa)
| Label Mnemonic: | HEP |
| Epic code: | LAB317 |
| Downtime form: | Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Hemostasis/Thrombosis
6240 RCP
356-3573
6240 RCP
356-3573
Specimen(s):
Citrated Plasma More information
Collection Medium:
 |
| Light Blue top tube 1.8 mL (Na Citrate) |
Minimum:
Full draw; 1.8 mL light blue top (3.2% sodium citrate) tube. Mix well.
Delivery Instructions:
Deliver to laboratory within 1 hour of collection.Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around
Time:
2 hours (upon receipt in laboratory)
Comments:
Site of anticoagulant infusion and site of blood collection must be entered at time of collection.
Recommended target range for treatment of DVT or venous thromboembolism is 0.4-0.7 U/mL.
High doses of unfractionated heparin with low anti-Xa results could be due to low antithrombin activity.
Methodology:
Anti Xa activity by chromogenic substrate without antithrombin supplementation.
Assay updated to Siemens Innovance reagent on 03/05/19.
CPT Code:
85520