Free Foetal DNA
The free foetal DNA test is used to determine the foetal Rh(D) type of pregnant Rh(D) Negative women who have not made immune anti-D and require the test to determine their need for antenatal anti-D prophylaxis.
| Tube | EDTA (Crossmatch) |
|---|---|
| ID | 12704 |
| Availability | As required |
| Additional Information | Usual transfusion sampling/labelling policies apply but the request form must also include the date of venepuncture and the EDD (by scan). A minimun of 6ml EDTA is required. |
| Collection Con | Sample NOT to be taken prior to 12 weeks gestation (usually taken at 16 week appointment). |
| Frequency | As required |
| IP Acute TAT | 14 days |
| IP Routine TAT | 14 days |
| GP Acute TAT | 14 days |
| GP Routine TAT | 14 days |
