Clinics and Departments

Laboratory Services

Lab Dept:

Anatomic Pathology

Test Name:

DIGEORGE SYNDROME FISH, BLOOD (FAIRVIEW)

General Information

Lab Order Codes:

FIS22 – By special request only

Synonyms:

Flourescent in Situ Hybridization Locus Probe for DiGeorge Syndrome

CPT Codes:

88271 – Molecular cytogenetics; DNA probe, each
88273 – Molecular cytogenetics; chromosomal in situ hybridization, analyze 10-30 cells

Note: CPT’s performed may vary based on findings

Test Includes:

FISH locus probes specific to DiGeorge Syndrome.

Logistics

Test Indications:

Based on clinical findings. Typically a consult with the Fairview Cytogenetics lab is required before ordering.

Lab Testing Sections:

Anatomic Pathology - Sendouts

Referred to:

Fairview-University Diagnostic Laboratory – Cytogenetics

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

7 - 28 days, testing performed daily

Special Instructions:

Request form must include date and time of specimen collection, attending physician, diagnosis (or reason for referral), clinical status, information regarding medication or transfusions, and specimen type.

Specimen

Specimen Type:

Whole blood

Container:

Green top (Na heparin, no gel) tube

Draw Volume:

10 mL (Minimum 5 mL) blood

Processed Volume:

Submit unprocessed whole blood in original Vacutainers®. Specimen will be processed at reference lab facility.

Collection:

Routine venipuncture

Special Processing:

Store and ship at room temperature. Do Not refrigerate or freeze.

Contact Laboratory before shipping. Must arrive within 24 hours.

Patient Preparation:

None

Sample Rejection:

Frozen or refrigerated specimen; mislabeled or unlabeled specimens; specimens older than 24 hours

Interpretive

Reference Range:

Interpretive report

Critical Values:

N/A

Limitations:

N/A

Methodology:

Determined by Laboratory Director based on clinical information.

References:

Fairview-University Diagnostic Laboratory Web Page April 2009

Updates:

2/5/2013: CPT update



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