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Factor 5 Assay

Important Note

THIS TEST IS FOR COAGULATION FACTOR 5 LEVEL. FOR THE FACTOR V LEDIEN MUTATION, ORDER THE ACTIVATED PROTEIN C RESISTANCE (APC), WHICH IS THE SCREENING TEST FOR FACTOR V LEIDEN.

eD-H Order Code

LAB304

Specimen Collection Information

Specimen Minimum Test Volume Container Special Handling

Blood

Neonatal/Pediatric
Minimum Volumes

All other Coag tubes must be filled to the line on tube.

  

Specimen Transport Temperature

Double spin, separate, and freeze

Reference Ranges / Critical Values

Assay Gender Age Range Normal Range Critical Values Units
Factor 5 All 15 Days – 1 Months 69 -124   %
    1 Months – 6 Months 60 -147   %
    6 Months – 1 Years 59 -160   %
    1 Years – 6 Years 73 -188   %
    6 Years – 11 Years 82 -141   %
    11 Years – 18 Years 62 -125   %
    18 Years – 150 Years ≥62   %

Specimen Stability

4 hours

Additional Specimen Instructions

1.8 mL Sodium Citrate tube filled to the line

OR

2.7 mL Sodium Citrate tube filled to the line

 

Blue top tubes must be filled within 10% of stated volume. A discard tube must be used if a citrate tube is to be drawn using a winged blood collection set. It is important to remove air from the blood collection set to ensure the proper blood volume is obtained in the coag tube.

 

If the patient has a known hematocrit >55%, please contact the coagulation lab for an adjusted collection tube before drawing the blood.

CPT(s)

85220

Performing Lab Section

Hematology