Referrals are funded for:
o Fetal abnormalities detected on ultrasound scan
o Maternal screening (serum or NIPS) risk is >1:50
◦Parent carries a chromosome translocation involving chromosomes 13 or 21 (e.g. Robertsonian translocation)
o Previous child or pregnancy with Down, Edwards or Patau syndrome (trisomy 21, 18 or 13)
For all other referral categories, there will be a direct charge to the patient. Please ensure payment is sent with the specimen. Cheques should be made payable to Canterbury Health Laboratories.
Genetics - Cytogenetics
Chorionic villus, FISH
CVS, aneuploidy screen
Prenatal diagnosis, CVS FISH
Rapid FISH, CVS
Pre-Testing Requirements Appropriate counselling by LMC or obstetrician.
If possible, please notify us by phone/fax if you have despatched a CVS specimen.
Out of town specimens - fax the request form ensuing the courier tracking no. is visible. This is in case a specimen fails to arrive.
Please also notify us if a CVS specimen is going to arrive out of normal working hours.
All samples should be taken in a sterile manner into a universal container with CVS transport medium (ensure expiry date is valid).
Send in "Prenatal Transport" pack (see below) as soon as possible. Delay can affect cell growth. Keep at room temperature. DO NOT FREEZE.
"Prenatal Transport" packs are available from the Cytogenetics laboratory.
Chromosomes + FISH requires at least 25mg clean chorionic villi (as a guide, a 4-stranded branch of villi = approx 5mg tissue).
Those received without patient identifiers clearly displayed on specimen containers.
Those with unsuitable or insufficient villus material.
Ambient (8 - 24 degrees Celsius)
Please notify us by phone/email on dispatch
Comment on report
Comment on report
Rapid aneuploidy screening test using fluorescence in situ hybridisation (FISH) on uncultured chorionic villus cells with probes specific for chromosomes X, Y, 13, 18 and 21. The screen detects Down, Edwards or Patau syndrome (trisomy 21, 18 or 13 respectively) or sex chromosome aneuploidy such as Monosomy X (Turner syndrome).
This test detects 70 - 80% of all chromosome abnormalities and is offered as an adjunct to microarray or G-Banded chromosome analysis.
$716.62 (Exclusive of GST)
All prenatal requests are treated as urgent. If a result is required with 2 days please inform the laboratory