Noonan Spectrum Disorders Panel, Sequencing, Fetal
Ordering Recommendation
Use to confirm the diagnosis of a Noonan spectrum disorder (NSD) in a pregnancy with clinically suggestive findings, such as increased nuchal translucency, cystic hygroma, and cardiac defects.
New York DOH Approval Status
Specimen Required
Fetal Specimen: Two T-25 flasks at 90 percent confluent of cultured amniocytes or cultured CVS.
AND Maternal Cell Contamination Specimen: Lavender (EDTA), pink (K2EDTA), or yellow (ACD Solution A or B).
Cultured Amniocytes or Cultured CVS: Fill flasks with culture media. Transport two T-25 flasks at 90 percent confluent of cultured cells filled with culture media. Backup cultures must be retained at the client's institution until testing is complete. If ARUP receives a sample below the minimum confluence, CG GRW&SND (0040182) will be added on by ARUP, and additional charges will apply. If clients are unable to culture specimens, CG GRW&SND should be added to initial order.
AND Maternal Cell Contamination Specimen: Transport 3 mL whole blood (Min: 1 mL)
Culture Amniocytes or Cultured CVS: CRITICAL ROOM TEMPERATURE. Must be received within 48 hours of shipment due to lability of cells.
Maternal Cell Contamination Specimen: Ambient.
Cultured Amniocytes or Cultured CVS: Ambient: 48 hours; Refrigerated: Unacceptable; Frozen: Unacceptable
Maternal: Ambient: 72 hours; Refrigerated: 1 week; Frozen: Unacceptable
Methodology
Massively Parallel Sequencing
Performed
Varies
Reported
14-21 days
If culture is required, an additional 1 to 2 weeks is required for processing time.
Reference Interval
By report
Interpretive Data
Refer to report.
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Counseling and informed consent are recommended for genetic testing. Consent forms are available online.
Laboratory Developed Test (LDT)
Note
Reported times are based on receiving the two T-25 flasks at 90 percent confluency. Cell culture time is independent of testing turn-around time. Maternal specimen is recommended for proper test interpretation. Order Maternal Cell Contamination.
GENES TESTED: BRAF, CBL, HRAS, KRAS, LZTR1, MAP2K1, MAP2K2, NRAS, PTPN11, RAF1, RASA2, RIT1, SHOC2, SOS1, SOS2, SPRED1
Hotline History
Hotline History
CPT Codes
81442; 81265
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0050548 | Maternal Contamination Study Fetal Spec | 59266-7 |
0050612 | Maternal Contam Study, Maternal Spec | 66746-9 |
2010770 | Noonan Disorders Seq. Specimen, Fetal | |
2010771 | Noonan Disorders Seq. Interp, Fetal |
Aliases
- Cardiofaciocutaneous syndrome
- CFCS
- Costello syndrome
- CS
- LEOPARD syndrome
- MAPK
- Multiple lentigines syndrome
- Noonan- like syndrome with loose anagen hair
- NS/LAH
- RAS
- Rasopathies
- Rasopathy