Clinics and Departments

Laboratory Services

Lab Dept:

Anatomic Pathology

Test Name:

DIGEORGE VCF CATCH 22 MICRODELETION FISH (22q11)

General Information

Lab Order Codes:

DGC22

Synonyms:

Velocardiofacial Syndrome 22Q11 deletion

CPT Codes:

88271 x2 – Molecular cytogenetics; DNA probe, each
88273 – Chromosome in situ hybridization, analyze 10-30 cells
88275 – Interphase in situ hybridization, analyze 100 – 300 cells

Test Includes:

N/A

Logistics

Test Indications:

N/A

Lab Testing Sections:

Anatomic Pathology - Sendouts

Referred to:

Abbott Northwestern Hospital Laboratory – Cytogenetics (Test# 2296 or Panel C61)

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily until 7:00 pm

Turnaround Time:

2 – 21 days

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) tube

Draw Volume:

5 mL (Minimum: 1 mL) blood

Processed Volume:

Same as Draw Volume

Collection:

Routine venipuncture

Special Processing:

Lab Staff: Do Not centrifuge specimen. Store and send at room temperature in original collection container. Use ANW request form B. Call (612-863-4541) prior to sending specimen. Send to MOB 402 (Allina Cytogenetics).

Patient Preparation:

None

Sample Rejection:

Frozen or refrigerated samples; mislabeled or unlabeled specimens

Interpretive

Reference Range:

Interpretive report

Critical Values:

N/A

Methodology:

Determined by Laboratory Director based on clinical information.

References:

Abbott Northwestern Cytogenetics Lab May 2008

Updates:

2/5/2013: CPT update



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