Test Details
Mnemonic
EGFR
Ordering Code
3423400
CPT-4 Code(s)
81235
Specimen Information
Collect
Formalin fixed paraffin embedded tissue
Specimen Preparation
Formalin fixed paraffin embedded tissue block sent at room temperature.
Alternate Specimen
Slide: 8 (4 minimum) unstained charged (+) slides. Cut one 3 - 5 microns tissue section for H & E stain. Cut 3 - 5 (10 microns) sections on non-charged regular glass slides for microdissection. The slide should not be baked or melted. A new blade must be used for each paraffin block, for cutting to prevent cross contamination.
Transport Temperature
Room temperature
Rejection Criteria
Thawed tissue, fresh tissue, non-fixed tissue, frozen tissue
Stability
Block:
Room temperature: 5 years
Refrigerated: 5 years
Frozen: Unacceptable
Room temperature: 5 years
Refrigerated: 5 years
Frozen: Unacceptable
Methodology
Polymerase Chain Reaction and Sequencing
Reference Range
EGFR Mutation: Not detected
Performing Laboratory
Quest
New York DOH Approval Status
Yes