Test Details
Mnemonic
GAUCH
Ordering Code
3515000
CPT-4 Code(s)
81251
Specimen Information
The following germline genetic tests from Quest require physician attestation that patient consent has been received if ordering medical facility is located in AK, DE, FL, GA, IA, MA, MN, NV, NJ, OR, SD or VT or test is performed in MA.
Collect
Lavender EDTA
Specimen Preparation
Send 4.0 mL whole blood at room temperature in the original tube or in a screw capped plastic vial.
Alternate Specimen
Whole Blood: ACD yellow top tube, royal blue top, sodium or lithium heparin green tube.
Bone Marrow:
Collect and send 10.0 mL (10.0 mL minimum) bone marrow in a Lavender EDTA tube.
Bone Marrow:
Collect and send 10.0 mL (10.0 mL minimum) bone marrow in a Lavender EDTA tube.
Minimum Volume
3.0 mL
Transport Temperature
Room temperature
Stability
Whole blood or bone marrow:
Room temperature: 8 days
Refrigerated: 8 days
Frozen: Unacceptable
Room temperature: 8 days
Refrigerated: 8 days
Frozen: Unacceptable
Methodology
PCR, Net generation sequencing
Reference Range
See report
Performing Laboratory
Quest SJC