Feedback
IDH1 and IDH2 Mutation Analysis, Exon 4, Formalin-Fixed, Paraffin-Embedded (FFPE) Tissue
2014188
Ordering Recommendation

IDH1/IDH2 mutational status is a prognostic marker in individuals with low- and high-grade gliomas. Aid in distinguishing a primary from a secondary glioblastoma.

Mnemonic
IDH1-2FFPE
Methodology
Polymerase Chain Reaction/Sequencing
Performed
Sun, Tue, Thu
Reported
8-14 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. Also acceptable: DNA extracted by CLIA certified lab with corresponding client-circled H&E slide. 
Specimen Preparation
Tumor Tissue: Formalin fix (10 percent neutral buffered formalin) and paraffin embed tissue. Protect from excessive heat. Tissue block will be returned after testing.Transport tissue block or 4 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.
Extracted DNA: Transport 40 uL DNA with at least 50 ng/uL concentration. (Min: 40 uL) Transport DNA 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. Also acceptable: Refrigerated. Ship in cooled container during summer months.
Extracted DNA: Refrigerated. 
Unacceptable Conditions
Less than 25 percent tumor. DNA extracted by a non-CLIA lab. DNA extracted without a corresponding circled H&E slide. Specimens fixed/processed in alternative fixatives (alcohol, Prefer) or heavy metal fixatives (B-4 or B-5). Decalcified specimens. 
Remarks
For FFPE specimens include surgical pathology report. 
Stability
Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Unacceptable
Extracted DNA Ambient: 1 month; Refrigerated: Indefinitely; Frozen: Indefinitely 
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
Hotline History
View Hotline History
CPT Code(s)
Components
Component Test Code*Component Chart NameLOINC
2002148Block ID57723-9
2006445IDH1 and IDH2 Mutation Results35474-6
2014216IDH1-2 FFPE Source
* 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
  • IDH1
  • IDH1 SNP
  • IDH2
  • Isocitrate dehydrogenase (IDH) 1 and 2
  • Isocitrate Dehydrogenase 1
  • Isocitrate Dehydrogenase 2
  • NADP+