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Newborn Screening Results: Haemoglobin D Carrier (HbAD)


There are 7 different types of haemoglobin D. The only clinically relevant variant is haemoglobin DPunjab.

Test partner, if not done previously (that includes haemoglobin screen, full blood count and ferritin levels).

  • If partner is not a carrier of any haemoglobin variant, the couple have a 1 in 2 chance (or 50%) to have children who are healthy carriers.
  • If partner is a carrier of Sickle Cell disease (Haemoglobin S), refer to Clinical Genetics for appropriate counselling on their reproduction options.
  • If the partner is a carrier of any other haemoglobin variant, reassure the couple as there is no other relevant interaction with any other haemoglobin variant.

If the couple has children, only test them if the partner is a carrier of a haemoglobin variant. Otherwise, there is no need to test them unless they are present with health problems. It is normally recommended to postpone testing until the age of 16, to enable them to make their own informed decision.

Stress that other family members can be carriers, so it is advisable to circulate the information to first-degree relatives (parents and siblings).

Give the appropriate information leaflets.

Make sure the patient has received his/her Haemoglobinopathy card.

Explain that it is still important to have malaria prophylaxis if visiting an area where malaria is endemic.

More Information

If you would like more information about haemoglobinopathies and testing, please do not hesitat to contact:

Community Genetic Counsellors on Tele: 0141 354 9201 / 0141 354 9229 (secretary)

Email: [email protected]