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EWSR1 Oncology Fluorescence in situ Hybridization (FISH)
Test Code510282
CPT Codes
88271(x2); 88275; 88291
Preferred Specimen
"Fixed-cell pellet from a cytogenetic analysis, slides with metaphases and/or interphase nuclei, or bone marrow touch prep slides. Blood, bone marrow, cerebrospinal fluid (CSF), FNA, paraffin block are also acceptable with additional charge
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Minimum Volume
"Fixed-cell pellet from a cytogenetic analysis, two slides, 5 mL blood (adult), 1 mL blood (pediatric), or 1 mL bone marrow
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Instructions
"Maintain specimen at room temperature.
Transport to the testing lab at room temperature; use a cool pack or LabCorp transport kit. Do not allow sample to freeze. Sample must arrive in the laboratory within 72 hours of collection.
There will be an additional charge for processing paraffin block samples or for samples that require culture.
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Transport to the testing lab at room temperature; use a cool pack or LabCorp transport kit. Do not allow sample to freeze. Sample must arrive in the laboratory within 72 hours of collection.
There will be an additional charge for processing paraffin block samples or for samples that require culture.
"
Transport Container
"Green-top (sodium heparin) tube; pediatric Vacutainer® is optimal or lavender-top (EDTA) tube
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Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
"Broken or dirty slides; excessive cellular debris or stained slides; decalcified bone cores; frozen specimen
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Methodology
"Fluorescence in situ hybridization (FISH) "
