KRAS MUTATION DETECTION

Test Documentation
Specimen Required
Send paraffin-embedded, foramlin-fixed tissue block. Protect paraffin block from excessive heat and include surgical pathology report.

Alternate Specimen
Whole blood: 6.0 mL lavender EDTA (4.0 mL minimum)
Bone marrow: 3.0 mL lavender EDTA (1.0 mL minimum)

Rejection Criteria
No tumor in tissue, gross hemolysis, clotted samples

Methodology
Polymerase Chain Reaction/sequencing

Stability
Tissue: Room Temperature: Indefinite; Refrigerated: Indefinite; Frozen: Unacceptable
Whole blood and Bone marrow: Room Temperature: 72 hours; Refrigerated: 72 hours; Frozen: Unacceptable

Reference Range
By report

Performed
Monday-Friday

Turnaround Time7-10 days
Test CodeKRASA
CPT-4 Code (s)
81275
LOINC Codes
Kras Mutation Detection   21702-6  
Source   31208-2  

Warde
Medical
Laboratory