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# Haematological disease - Whole blood and components

## Essential information

Obligatory

  Must not donate if:

  1. Malignant.
  2. A clonal disorder, such as primary polycythaemia (rubra vera), essential thrombocythaemia or monoclonal gammopathy of unknown significance MGUS).
Discretionary
  1. If following specialist investigation a polycythaemia is not diagnosed as polycythaemia rubra vera, or another myeloproliferative neoplasm, and no treatment or further investigation is planned, accept.
  2. If following specialist investigation a thrombocythaemia, or another myeloproliferative neoplasm, is not diagnosed as essential thrombocythaemia and no treatment or further investigation is planned, accept.

## Supporting information

See if relevant
  - Anaemia
  - Haemochromatosis
  - Haemoglobin disorders
  - Haemolytic anaemia
  - Immune thrombocytopenia
  - Malignancy
  - Polycythaemia and raised haemoglobin
Additional information

  Clonal disorders result from the proliferation of a single cell. Because they have the potential to become malignant, they are treated in the same way as malignancy.

Regulatory information

  This entry is a requirement of the Blood Safety and Quality Regulations 2005.

Reason for change:
  The discretionary and see if relevant sections have been updated to include the revised Polycythaemia and Raised Haemoglobin entry.
Version details:

  WB-DSG Edition 203 Release 58 (22 June 2021)

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