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

Additional Information

Do not refrigerate sample.

Collection Container

Green top (sodium heparin)

Specimen Required

Peripheral Blood

Special Handling Instructions

Send to Referral Laboratory with copy of ordering requisition.

Specimen Volume

5 mL

Minimum Specimen Volume

2 mL

Transport Temperature


Specimen Stability

Stable at ambient temperature.

Reasons for Rejection

Incorrect tube or insufficient quantity.


Fluorescent in-situ hybridization (FISH)

Turnaround Time

Final report within 7 - 10 days.

Reference Ranges

Laboratory to provide interpretive report.

CPT Code

88271 x2, 88273

EMR Interface Order Code