Cytogenetics Leukemic Blood (Oncologic) Karyotype
Karyotyping, Chromosome Analysis, Karyogram, blood karyotype, genetic, GBLOG, cytogenetics, leukemic blood, oncologic blood
Test Codes
EPIC: LAB6177
Department
Cytogenetics
Specimen Collection Criteria
Collect: 6.0 mL whole blood in Dark Green-top Sodium Heparin tubes. (Minimum: 1.0 mL)
- Gently invert the tube to mix the specimen.
- A copy of the requisition must be sent with the specimen. The requisition form should contain the patient name, birth date, medical record number, requesting physician, specimen type and test requested, date and time of collection, and tentative diagnosis.
Physician Office/Draw Specimen Preparation
Do not freeze specimen. Maintain specimens at room temperature (20-25°C or 68-77°F) prior to courier pickup. For delays in transport (greater than 24 from the time of collection), refrigerate (2-8°C or 36-46°F) the specimen.
Preparation for Courier Transport
Transport: 6.0 mL whole blood in Dark Green-top Sodium Heparin tubes, at room temperature (20-26°C or 68-78.8°F) or refrigerated (2-8°C or 36-46°F). (Minimum: 1.0 mL)
Rejection Criteria
Specimens arriving in the laboratory 4 days or more following the original collection date.
Clotted and suboptimal specimens (volume less than 1.0 mL) will be cultured but the Laboratory cannot guarantee a final result.
In-Lab Processing
Specimens are processed immediately upon receipt in the Laboratory.
Storage
Specimen Stability for Testing:
Room Temperature (20-26°C or 68-78.8°F): 24 hours
Refrigerated (2-8°C or 36-46°F): 96 hours
Frozen (-20°C/-4°F or below): Unacceptable
Specimen Storage in Department Prior to Disposal:
Refrigerated (2-8°C or 36-46°F): 7 days. A backup cell pellet is maintained for three weeks past sign-out of the final report.
Laboratory
Royal Oak Cytogenetics Laboratory
Performed
Monday – Friday, 8:00 am – 5:00 pm.
Results available within 7-14 days of receipt in the Laboratory.
STAT preliminary results available within 48 hours of receipt of the specimen, and a final result will be available within 7 days.
Reference Range
Normal results would be 46,XX or 46,XY with no apparent abnormalities present.
Test Methodology
High-resolution microscopic analysis of chromosomes to provide a digital image karyotype. Special stains or techniques such as C-Banding, NOR Banding and FISH may be required to further identify specific chromosomal abnormalities or variants.
Interpretation
Based on completion of chromosomal analysis. Interpretation will be issued in the form of a final report.
CPT Codes
88237, 88262, 88280.
Contacts
Cytogenetics Laboratory – RO
248-898-9030
Name: Cytogenetics Laboratory – RO
Location:
Phone: 248-898-9030
Last Updated
12/30/2022
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