Sex Chromosome Analysis by DNA FISH, Newborn Smear

Cytogenetics Laboratory:Cytogenetics

Test ID/Workstation: XYISH CYTO

Specimen Type: Blood, Bone Marrow

Tube Type: Green top (sodium heparin) tube

Collection Volume: 0.5 mL

Cause for rejection: Clotted, non-sterile, or frozen specimen

Storage: Ambient

Availability: Mon-Fri (0900-1600) Sat (0900-1300)

Methodology: Smears are prepared and pretreated, hybridized overnight with appropriate DNA probe(s), washed, and counterstained. 100-300 cells are analyzed using a fluorescence microscope and images are captured digitally using image analysis software.

Special Instructions: Typically in situ hybridization results can be confirmed by standard cytogenetic studies. Include pertinent medical findings on the requisition with suspected diagnosis and/or indication(s) for testing.

OC Power Word: -

Lab/Phone: 330-543-8483

TAT: 24 hours-5 days

Additional Info: Interpretation is provided with report

CPT Code: 88271 (each probe), 88275, 88291

Synonyms: FISH; Fluorescent in situ hybridization

Requisition Form
View and print a requisition form for this test

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