Prenatal Diagnosis by

• Amniocentesis

15 - 20 ml Amniotic Fluid in a plastic sterile container.

• Chorionic Villus Sampling

10 - 20 mg Villus tissue in culture media (available from the Cytogenetics Laboratory).

• Fetal Blood

1 - 2 ml of blood in a lithium heparin container.

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Peripheral Blood chromosome analysis

1 - 5 ml (child) or 5 - 10 ml (Adult) of blood in a lithium heparin container.

Bone Marrow leukaemia analysis

1 - 2 ml of aspirated bone marrow in culture media (available from the Cytogenetics laboratory).

Soilid Tissue (Fetal, Placenta or RPC) culture

Small tissue samples (fetal skin / muscle) in culture media (available from the Cytogenetics laboratory).

DO NOT SEND TISSUE FROM I.U.D. THAT HAS BEEN DEAD LONGER THAN 24 HRS.

Tumour Culture

Representative tissue in culture media (available from the Cytogenetics laboratory).

Fluorescent Insitu Hybridisation Studies.

Please indicate on the referal card which tests are required. (Availability).

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