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Lab Dept:
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Anatomic Pathology
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Test Name:
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WILLIAMS SYNDROME FISH MICRODELETION (7q11.2)
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General Information
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Lab Order Codes:
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WILF
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Synonyms:
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N/A
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CPT Codes:
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88271 x2 – Molecular cytogenetics; DNA probe, each
88273 – Chromosomal in situ hybridization, analyze 10-30 cells
88275 – Interphase in situ hybridization analyze 100-300 cells
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Test Includes:
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N/A
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Logistics
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Test Indications:
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N/A
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Lab Testing Sections:
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Anatomic Pathology - Sendouts
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Referred to:
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Abbott Northwestern Hospital Laboratory – Cytogenetics (Test# 2296 or Panel C61)
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6280
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651-220-6550
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Test Availability:
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Daily until 7:00pm
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Turnaround Time:
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2 – 21 days, testing performed daily
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Special Instructions:
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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.
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Specimen
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Specimen Type:
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Whole blood
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Container:
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Green top (Na heparin) tube
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Draw Volume:
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5 mL (Minimum: 1.0 mL) blood
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Processed Volume:
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Same as Draw Volume
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Collection:
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Routine venipuncture
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Special Processing:
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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).
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Patient Preparation:
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None
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Sample Rejection:
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Frozen or refrigerated specimen; mislabeled or unlabeled specimens
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Interpretive
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Reference Range:
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Interpretive report
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Methodology:
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Determined by Laboratory Director based on clinical information.
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Contraindications:
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N/A
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References:
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Abbott Northwestern Cytogenetics Lab May 2008
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