This test is used to detect microdeletions of chromosome 22q11 associated with DiGeorge, Velocardiofacial (VCFS) syndrome, using FISH (fluorescence in situ hybridization).
When ordering with a blood chromosome test this specimen is not needed, unless collecting 1.0 mL or less
5.0 mL Whole Blood in a Green Top Tube - Na Heparin
5 mL amniotic fluid collected in a sterile container
or
5 mg CVS in culture media
or
Whole blood collected in: sodium heparin (royal blue-top), or sodium heparin lead-free (tan-top) tube
Ambient
1.0 mL Whole Blood
No Reference Range Established
If this test is ordered on blood without routine G-band chromosome analysis, a Tissue Culture charge will be added, (CPT code: 88230). If results are not possible, the test order may be canceled and replaced with a Cytogenetics Communication
This test is used to detect microdeletions of chromosome 22q11 associated with DiGeorge, Velocardiofacial (VCFS) syndrome, using FISH (fluorescence in situ hybridization).
6 to 10 days
88271, 88273