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Factor 7 Assay

eD-H Order Code

LAB305

Specimen Collection Information

Specimen Minimum Test Volume Container Special Handling
Blood 1.0 ML Fill tube completely

Specimen Transport Temperature

Double spin, separate, and freeze

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.

Reference Ranges / Critical Values

Assay Gender Age Range Normal Range Critical Values Units
Factor 7 All 15 Days – 1 Months 55 -108   %
    1 Months – 6 Months 43 -141   %
    6 Months – 1 Years 55 -128   %
    1 Years – 6 Years 48 -124   %
    6 Years – 11 Years 55 -135   %
    11 Years – 18 Years 55 -133   %
    18 Years – 150 Years 50 -129   %

Performing Lab Section

Hematology

CPT(s)

85230