Chromogenic X
Label Mnemonic: CH10
Epic Lab Code: LAB1020
Downtime Form: A-1a Miscellaneous Request
Hemostasis/Thrombosis
6240 RCP
356-3573
Specimen(s):
Collection Medium:
Light Blue top tube 2.7 mL (Na Citrate)
Minimum:
Full draw; 2.7 mL light blue top
Rejection Criteria:
Short drawn tube, clot, traumatic tap (excessive hemolysis).
Delivery Instructions:
Deliver to laboratory immediately after collection.
Testing Schedule:
0800-1630 Monday through Friday. For additional services, contact Clinical Pathology Resident on-call at pager #3404.
Turn Around Time:
24-36 hours
Reference Range:
Greater than 50% Therapeutic reference range is 11-42%
Test Limitations:
This test is to be used for coumadin monitoring of patients with positive Lupus anticoagulants.
Methodology:
Activity detection by chromogenic substrate
CPT Code:
85260
 
See also:
Factor II Assay, Plasma