Factor XII, Activity
| Label Mnemonic: | F12 |
| Epic code: | LAB8663 |
| Downtime form: | A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Commercial Mailout Laboratory
6240-8 RCP
356-8593
6240-8 RCP
356-8593
Specimen(s):
Platelet Poor Polasma
Specimen
Instructions:
Separate specimens must be submitted when multiple tests are ordered.
Collection Medium:
 |
| Light Blue top tube 2.7 mL (Na Citrate) |
Minimum:
Absolute Minimum: 1 ml platelet poor plasma in light blue top tube.
Rejection Criteria:
Serum. EDTA plasma, clotted or hemolyzed specimens.
Delivery Instructions:
Deliver to laboratory immediately after collection. Critical frozen.Turn Around
Time:
1-3 days upon receipt at reference laboratory
Reference Range:
58-166%
Comments:
This test is used to evaluate the cause of an isolated prolonged PTT
in a patient who is not currently bleeding.
Methodology:
Electromagnetic Mechanical Clot Detection
CPT Code:
85280