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NRAS Mutation Detection by Pyrosequencing
2003123
Ordering Recommendation

Predicts response to anti-EGFR and MAPK pathway therapies in a variety of malignancies (eg, melanoma and colorectal cancer).

Mnemonic
NRAS
Methodology
Polymerase Chain Reaction/Pyrosequencing
Performed
Sun-Sat
Reported
7-12 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Tumor tissue. 
Specimen Preparation
Formalin fix (10 percent neutral buffered formalin)  and paraffin embed tissue. Protect from excessive heat. Transport tissue block or 5 unstained 5 micron slides. (Min: 3 slides). Transport block and/or slide(s) in a tissue transport kit (ARUP supply # 47808) available online through eSupply using ARUP Connect™or contact ARUP Client Services at (800) 522-2787. 
Storage/Transport Temperature
Room temperature. Ship in cooled container during summer months. 
Unacceptable Conditions
Frozen specimens. Specimens fixed/processed in alternative fixatives (alcohol, Prefer®) or heavy metal fixatives (B-4 or B-5). Decalcified specimens. 
Remarks
Include surgical pathology report. Tissue block will be returned after testing. 
Stability
Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Unacceptable 
Reference Interval
Interpretive Data
Refer to report.

Compliance Statement B: For laboratory developed tests not using a RUO kit, and for FDA approved, cleared or 510(k) exempt assays with alterations. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Note
This assay detects mutations in codons 12, 13, and 61.
Hotline History
N/A
CPT Code(s)
88381; 81311
Components
Component Test Code*Component Chart NameLOINC
2002148Block ID57723-9
2003124NRAS Mutation Detection, Pyrosequencing21719-0
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Anti-EGFR therapy resistance
  • Codon 12,13
  • Codon 61
  • N-RAS
  • RAS Mutation Analysis, Thyroid Cancer