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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: FISH- Stillbirth

Test Code(s): SLH875 / HCSLH875

CPT Code(s): 88271 x 5, 88275

Methodology: Fluorescence In Situ Hybridization (FISH)

Clinical Significance: Used to determine copy number for chromosomes 13, 18, 21, X and Y.

Testing Site: Testing will be sent to an approved reference laboratory.

Days Performed: Mon-Fri.


Specimen Requirements

Specimen: Tissue

Collection Instructions: Five 4-micron sections of paraffin embedded tissue on immunohistochemistry slides.  The middle section should be stained with H&E.

Collection Container: Also Acceptable: See collection instructions.

Specimen Transport: Transport specimen to UWHC Core Laboratory (B4/220) at room temperature (may transport with coolant during hot, >85F, weather).


Interpretation

By report.

Test Limitations:

This test does not rule out isochromosomes or structural abnormalities of chromosomes 13,18,21,X and Y.

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