Parental cytogenetic testing


Parental cytogenetic testing may be requested following the conception of a cytogenetically abnormal fetus, the birth of a cytogenetically abnormal child, the loss of a pregnancy with a suspected chromosome abnormality, or an unexplained stillbirth/neonatal death.

Request a test

When requesting this test please use the referral form provided. Please also refer to any additional information provided for this test.

Additional information

For additional information please click on the link

Sending address

Rare & Inherited Disease Laboratory
London North Genomic Laboratory Hub
Great Ormond Street Hospital for Children
Levels 4-6 Barclay House
37 Queen Square

Laboratory service


Sample requirements

2ml lithium heparin blood. 2ml venous blood in plastic EDTA tube if indicated on the proband�s report

Reference range

Not applicable

Turnaround time

28 days


Upon request

Call in advance?

Not required


The Genetics Laboratories provide an extensive range of Cytogenetics and Molecular Genetics diagnostic testing services.

© 2011 Great Ormond Street Hospital for Children NHS Trust