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deletion 7q22 by FISH

Test Code

F 7q

Test Synonyms

[D7S796, D7S658] / 7q31.2 [D7S486]




Fluorescence in situ Hybridization (FISH)

7q22 (D7S796,D7S658)/7q31.2 (D7S486)

Turnaround Time

3-5 days

Specimen Requirements

2.0 mL (min. 1.0 mL) peripheral blood in sodium heparin preferred, EDTA accepted
1.0 mL (min. 0.5 mL) bone marrow in sodium heparin preferred, EDTA accepted
5 mm^3 fresh tissue or 3.0 mL (min. 2.0 mL) FNA in MPLN RPMI media

Specimen Stability
Peripheral blood and bone marrow stable at 18-25°C for 72 hours Fresh tissue or FNA at 2-8°C stable for 72 hours
Storage & Handling

Whole blood and bone marrow, ship ambient
Fresh tissue and FNA ship in a Styrofoam container with a cool/refrigerated pack (Do not allow cool pack to directly contact sample)

Causes for Rejection

Clotted specimen; Specimen exposed to extreme temperature; Anticoagulant toxic to cells; Insufficient number of cells

Reference Range

See report.