| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Factor X Activity
Test CodeFAC10
Alias/See Also
Epic: LAB758
Preferred Specimen
Specimen Type: Platelet-poor plasma
Collection Container: Light blue top (citrate)
Specimen Volume: 1 mL
Minimum Volume
0.5 mL
Instructions
Collection Instructions:
Additional Information:
- Draw blood into a light blue (sodium citrate) tube. Be sure to fill tubes completely.
- Mix gently 5 to 6 times (do not over mix).
- Centrifuge the sample for 10 minutes.
- Using a pipette, aliquot plasma into a plastic vial being careful not disturb the buffy coat.
- Centrifuge the plasma sample a second time for 10 minutes
- Using a pipette, aliquot the top portion of plasma into a plastic vial. Be careful not to disturb the sediment at the bottom (leave approx. 0.25 mL of plasma at the bottom).
- Label each tube as "Plasma."
- Immediately freeze samples
Additional Information:
- Double-centrifuged specimen is critical for accurate results as platelet contamination may cause spurious results.
- Each coagulation assay requested should have its own vial.
- Do not store citrated samples refrigerated because the factors may become cold activated.
Transport Container
Plastic vial
Specimen Stability
Plasma
Room temperature: 4 hours
Refrigerated: Unacceptable
Frozen: 1 month
Whole Blood
Room temperature: 4 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Unacceptable Specimens: Samples that are short draws, clotted or have excessive hemolysis, icterus or lipemia should not be used, as they may yield incorrect results.
Setup Schedule
Monday - Friday, AM
Report Available
1 day
Reference Range
77 - 145 %
Performing Laboratory
Inova Laboratories
2832 Juniper Street
Fairfax, VA 22031
Last Updated: March 28, 2023
Last Review: N. Wolford, March 28, 2023