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# Radionuclides - Whole blood and components

## Essential information

Definition/s

  Radionuclides are unstable materials that emit radioactivity when they decay. They are used in some special investigations carried out in radiology (X-ray) and medical physics departments. They may be breathed in, taken by mouth or given by injection.

Obligatory
  1. Radioactive iodine therapy:
     Must not donate if:
     1. For malignancy.
     2. Administered in the preceding 6 months for a non-malignant condition.
  2. Other treatment or investigation:
     Refer to a Designated Clinical Support Officer.

## Supporting information

See if relevant
  - Investigations
  - Malignancy
  - Thyroid disease
Additional information

  In general, those used for diagnostic purposes are cleared within 24 hours. Some (e.g. radioactive iodine) have long half-lives and affected donors must not be accepted unless at least 6 months have passed. This is because we do not wish to transfuse radioactive material to recipients, particularly where it may affect a child or an unborn baby.

Reason for change:
  A 'Definition' of 'Radionuclides' has been added. The 'Additional Information' has been extended.
Version details:

  WB-DSG Edition 203 Release 01 (01 June 2010)

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