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Paediatric Laboratory Medicine

G-Band Karyotyping - Constitutional, Tissue

Clinical Significance

Karyotyping of fibroblasts derived from tissue biopsy is usually performed when mosaicism is suspected in a patient.

Test Name

G-Band Karyotyping - Constitutional, Tissue

Alternate Name/ Synonym

Chromosome analysis

Gene Name

  • All chromosomes

Division

Cytogenetics

Method

Cell culture; G-banding

External Proficiency Testing

CAP
QMPLS

Turn Around Time

4 weeks

Disease/Condition

Constitutional chromosome disorders, including aneuploidy, chromosome rearrangements, and mosaicism

Specimen Type

Tissue

Minimum Specimen Requirements

Minimum 2-3 mm3 fresh tissue (skin biopsy)

Storage/Transportation

Refrigerate until time of shipment. Ship sample overnight at room temperature for receipt at SickKids Cytogenetics Laboratory within 24 hours of collection.

Special Requirements

Place in sterile container with SickKids Cytogenetics transport media or other sterile culture media.

Shipping and Contact Information

The Hospital for Sick Children
Rapid Response Laboratory
170 Elizabeth Street, Room 3642
Toronto, ON
M5G 2G3
Canada
Phone: 416-813-7200
Phone: 1-855-381-3212

Interpretation

Provided