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Aneuploidy FISH Panel

TEST DIRECTORY

Test Name

Aneuploidy FISH Panel

Alternate Names

triploidy, trisomy

Description

Fluorescence in-situ hybridization (FISH) using several DNA probe sets to detect sex chromosomes, monosomy X, trisomy of chromosomes 13, 18, and 21, and tripoidy.

Test Code

80280

SPECIMEN REQUIREMENTS

Specimen

Blood

Specimen Requirements

Fresh tissue collected in RPMI, formalin-fixed paraffin embedded tissue, peripheral blood collected in sodium heparin (green topped) tube

Storage Requirements

Store specimens at room temperature (15 to 30°C) until transported, adding a cold (refrigerator) pack during the summer months.

Causes for Rejections

Decalcified tissues are not accepted.

GENERAL AND TECHNICAL INFORMATION

Turn Around Time

Formalin-fixed paraffin embedded tissue: 7 days

Fresh tissue, bone marrow, and blood: 3-10 days

Preliminary on newborn blood: 24 hours

Methodology

Fluorescence in-situ hybridization (FISH)

CPT Code

Formalin-fixed paraffin embedded tissue: 88377x2
Fresh tissue: 88271x5, 88275x2, 88291