Detection of microscopically visible unbalanced and balanced chromosome changes. Resolution >10Mb.
• suspected chromosome aneuploidy eg. Monosomy X (Turner syndrome), trisomy including mosaicism,
• confirmation of abnormal rapid aneuploidy screen,
• detection of known parental chromosome rearrangement previously detected by G-banded karyotype
Genetics - Cytogenetics
Chorionic villus, chromosomes
Prenatal diagnosis, CVS
Appropriate counselling by LMC or obstetrician.
Transport medium is available from the laboratory by contacting LabInfo@cdhb.health.nz
Chromosome Analysis only 20mg clean chorionic villi
Chromosome Analysis + FISH/QF-PCR 25mg clean chorionic villi
DNA/Biochemical Analysis 25mg clean chorionic villi
(4-stranded branch of villi = approx 5mg)
All samples should be taken in a sterile manner into a universal container with RPMI Tissue Transport Medium (ensure expiry date is valid). Send as soon as possible. Delay can affect cell growth. DO NOT FREEZE.
Please notify us on dispatch by phone or email.
Analysis and interpretation of this assay requires knowledge of the biological sex of the patient being tested. Please assist us in delivering quality results by providing accurate biological sex information on all referrals for this testing.
Comment on report
Comment on report
Chorionic villus tissue is cleaned under microscopic guidance, finely chopped and cultured in growth medium for around 8-14 10 days and then harvested at the metaphase stage of the cell cycle when chromosomes are visible by light microscopy.
Microscopic analysis (karyotyping) is performed on GTL-banded chromosome preparations. Routine analysis comprises of 5 metaphases fully analysed and 10 counted.
$683.19 (Exclusive of GST)
Unacceptable specimens - Those received without patient identifiers clearly displayed on specimen containers. Those with unsuitable or insufficient villus material.
Samples must be sterile. Occasionally, poor cell growth will result in a delayed result. This is more frequent with small samples.
All prenatal requests are treated as urgent.
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