View information on our visitor policy. >>

Information about coming with a patient for their appointment, test or surgery. >>

Text size: a a a

Laboratory Medicine

Test catalogue

Hemophilia B (Factor IX Deficiency)

Test Name

Hemophilia A (Factor IX Deficiency)

Lavender Tube Specimen Type / Requirements

Container Type = 2 Lavenders (EDTA)

Minimum Volume = 5mL Whole Blood EDTA

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions:

Collect in Lavender (Purple EDTA) top. Testing includes direct or indirect testing for inheritance of mutations of the IX gene. Write your initials, date and time of collection on the collection label or requisition.

Special Instructions Samples required from appropirate family members including atleast one affected individual.The specimen should be shipped on a Monday, Tuesday or Wednesday so that the Laboratory will receive the specimen within 24-72 hours after collection. Ship at room temperature. If there is a delay in the shipping of specimen (i.e.>48 hours), the sample should be placed in the refrigerator and shipped to Laboratory on ice.

Rejection Criteria: Grossly hemolyzed, lipemic, Unlabeled or Not Sufficient Quantity samples will be rejected. Avoid multiple freeze-thaw.

Stability: Stable at room temperature for 24 - 48hours, refrigerated for 5 Days.


Send sample on room temperature to core lab as soon as possible.

Required Documentation

Genetics requisition required

Turnaround Time (TAT)

2 Weeks - 6 Months

Test Utilization


Reference Value

See Interpretative Report

Test code



Inversion Testing

Testing Location

Referred Out – ON, Canada (ROKGH11)

Other Information

Last Updated: June 06, 2019