A
5200 Harry Hines Blvd.
,
Dallas
,
TX
75235
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General Information
Alias: Christmas Factor, Hemophilia B Factor
Performed: Mon-Fri
Turn Around Time: 1-3 days
CPT Codes: 85250
Performed By: Hematology
Notes: Results not affected by hemoglobin up to 500 mg/dL, triglycerides up to 1000 mg/dL and bilirubin up to 26 mg/dL.
Clinical Utility: Quantitative determination of Factor IX activity is utilized to aid in in the diagnosis of congenital or acquired Factor IX deficiency. Congenital deficiency of Factor IX leads to Hemophilia B (Christmas Disease),that causes mild to severe bleeding which may follow injury or occur spontaneously.
Unacceptable Conditions: Clotted, severely hemolyzed, refrigerated or on ice.
Components
Name |
Method |
Sex |
Age Range |
Ref. Range Low |
Ref. Range High |
Units |
Factor IX Activity |
Activated Partial Thromboplastin Clot Based Assay |
|
0 Minutes - Day 1 |
15 |
91 |
% |
Factor IX Activity |
Activated Partial Thromboplastin Clot Based Assay |
|
Day 1 - Day 4 |
15 |
91 |
% |
Factor IX Activity |
Activated Partial Thromboplastin Clot Based Assay |
|
Day 5 - Day 29 |
15 |
91 |
% |
Factor IX Activity |
Activated Partial Thromboplastin Clot Based Assay |
|
Day 30 - Day 89 |
21 |
81 |
% |
Factor IX Activity |
Activated Partial Thromboplastin Clot Based Assay |
|
Day 90 - Day 179 |
21 |
113 |
% |
Factor IX Activity |
Activated Partial Thromboplastin Clot Based Assay |
|
Day 180 - Day 364 |
36 |
136 |
% |
Factor IX Activity |
Activated Partial Thromboplastin Clot Based Assay |
|
1 Year - 5 Years |
47 |
104 |
% |
Factor IX Activity |
Activated Partial Thromboplastin Clot Based Assay |
|
6 Years - 10 Years |
63 |
89 |
% |
Factor IX Activity |
Activated Partial Thromboplastin Clot Based Assay |
|
11 Years - 16 Years |
59 |
122 |
% |
Factor IX Activity |
Activated Partial Thromboplastin Clot Based Assay |
|
17 Years - 150 Years |
65 |
150 |
% |
Specimen Requirements
Type |
Container |
Volume |
Units |
Collection / Delivery |
Storage / Transport |
Off Campus |
Blood |
Blue Na Citrate, 3mL |
Draw to fill line |
|
Send to Lab within 3 hrs of collection. |
Room Temperature |
Deliver to Logistics Hematology Lab via STAT courier
|