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Test Code WHFSH Wolf Hirschorn FISH

Additional Information

Do not refrigerate sample.

Collection Container

Green (Sodium Heparin)

Specimen Required

Peripheral Blood

Special Handling Instructions

Send to Referral Laboratory with copy of ordering requisition.

Specimen Volume

5 mL

Minimum Specimen Volume

2 mL

Transport Temperature


Specimen Stability

Stable at ambient temperature

Reasons for Rejection

Incorrect tubes, insufficient quantity


Fluorescent in-situ hybridization

Turnaround Time

Preliminary results available after 4 - 5 days, final report within 7 - 10 days

Reference Ranges

Laboratory to provide interpretive report

CPT Code

88230, 88271, 88273

EMR Interface Order Code