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T4, total, raised

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Conditions associated with raised T4 include:

  • hyperthyroidism
  • increased binding proteins:
    • pregnancy
    • women taking oestrogen
    • women taking some oral contraceptive pills
  • anti-T4 immunoglobulins
  • transient hyperthyroxinaemic states:
    • acute medical / psychiatric conditions
    • high altitude exposure
  • drugs - amiodarone, amphetamines, iodinated radiocontrast dyes, propylthiouracil, glucocorticoids
  • foetus and neonate

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