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Test Code DGFSH DiGeorge Syndrome Fish, 22q11.2 Deletion

Collection Container

Green top (sodium heparin)

Specimen Required

Peripheral Blood

Specimen Volume

5 mL

Minimum Specimen Volume

2 mL

Special Handling Instructions

Send to Referral Laboratory with copy of ordering requisition.

Transport Temperature

Ambient

Specimen Stability

Stable at ambient temperature.

Reasons for Rejection

Incorrect tube or insufficient quantity.

Methodology

Fluorescent in-situ hybridization (FISH).

Reference Ranges

Laboratory to provide interpretive report.

Turnaround Time

Final report within 7-10 days.

Additional Information

Do not refrigerate sample.

CPT Code

88271 x2

88273