Test Details

Mnemonic

VONWI

Ordering Code

3400356

CPT-4 Code(s)

81408, add 88235 if testing is performed on amniotic fluid or chorionic villi at additional charge

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, NY, OR, SD or VT or test is performed in MA.

Collect

Lavender EDTA

Specimen Preparation

Draw blood in lavender EDTA tube. Send 5.0 mL whole blood.

Alternate Specimen

Yellow top (ACD), sodium heparin royal blue top,
Sodium heparin green top, amniotic fluid, chorionic villi collected in a sterile leak-proof
container, cultured cells collected in each of two sterile T-25 flasks.

Minimum Volume

Whole blood: 3.0 mL, Amniotic fluid: 10.0 mL, Chorionic villi: 10.0 mg,
Cultured cells: 75% confluent

Transport Temperature

Room temperature

Rejection Criteria

Plasma, Refrigerated specimens, Frozen specimens

Stability

Whole blood:
Room temperature: 14 days
Refrigerated: 14 days
Frozen: Unacceptable

Amniotic fluid, cultures cells, chorionic villi:
Room temperature: 48 hours
Refrigerated: Unacceptable
Frozen: Unacceptable

Methodology

Next Generation Sequencing
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Reference Range

See report
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Performing Laboratory

Quest
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New York DOH Approval Status

Yes
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