Laboratory Medicine

Test Directory / DNA studies

DNA studies

EDTA

Test	DNA studies
Common Abbreviations
Profile
Clinical Indication	Genetic services offered include the diagnosis of genetic disease, carrier testing for individuals at high risk of genetic disease, presymptomatic diagnosis of inherited adult onset disorders and prenatal diagnosis.
Specimen Type	Blood
Sample Type	EDTA
Minimum Volume	5-10 mL (adult) minimum 1 mL (paed)
Special Precautions	Appropriate tubes available from specimen reception. Tests for 'fragile X' require 10mL Lithium heparin & 5 mL EDTA blood.
Stability	24 hrs (store overnight samples at 4C if necessary)
Turnaround Time	1 - 2 weeks
Laboratory	Regional DNA Laboratory Leeds St James University Hospital
Reference Interval	None stated
Limitations
Additional Information

Update for visitors

Visiting restrictions are in place at our hospitals to stop the spread of norovirus. These restrictions will be in place until further notice.

The following wards are closed to visitors:

York Hospital: Ward 29 and Ward 37.

There are four exceptions only to the restrictions. These are:

For patients who are receiving end of life care

Paediatric patients (babies and children)

Maternity care

The family carers of those with dementia

We understand these restrictions can be difficult when a loved one is unwell. The restrictions will be reviewed daily and lifted as soon as it is safe. Thank you for your understanding as we try to reduce the spread of norovirus in our hospitals.