Factor 11 Activity
Abbrev Code: | F11 | ||
Order Code: | LAB309 | Order Name: | Factor 11 Assay |
Synonyms: | Anti-Hemophilic Factor C; Plasma Thromboplastin Antecedent; Factor XI Activity | ||
Methodology: | APTT clotting time correction of factor 11 deficient plasma. Patient dilutions are compared to a known set of standard dilutions and a percentage is determined. | ||
CPT Codes: | 85270 x1 | ||
Turnaround Time: | Turnaround time is 4-8 hours if received during lab hours (see Associated Link). With pre-notification, stats are done within 1 hr after receipt in the laboratory. | ||
Associated Links: | Specimen Collection and Processing for Coagulation Specimens |
Collection Instructions
Specimen: | Blood |
Optimal Volume: | 2.7 mL (in 3 mL tube) - filled to fill line on the tube. |
Minimum\Peds Volume: | 1.8 mL (in 2 mL tube) - filled to fill line on the tube. |
Container: | Blue Na Citrate, 3.2% - fill to fill line on tube |
Collection Instructions: | See link to Specimen Collection and Processing for Coagulation Specimens. |
Causes for Rejection: | Underfilled tube or clotted specimens. |
Processing and Shipping
Specimen Processing: | See link to Specimen Collection and Processing for Coagulation Specimens. |
Shipping Instructions: | See link to Specimen Collection and Processing for Coagulation Specimens. |
Test Performed at or Referral Lab | Special Coagulation (UMMC East Bank) |
Interpretive
Critical Range: | Less than 10% | ||||||||||||||
Reference Range: |
|
||||||||||||||
Use: | Factor 11 is an intrinsic coagulation pathway factor. A deficiency may cause bleeding of variable severity (usually mucous membrane or post surgical). |
Click HERE to Report test errors or omissions.
*If no email program is associated with this computer, please contact:
systemlabguide@fairview.org for TestID: 1352"