title: Radioimmunoassay of triiodothyronine and thyroxine in capillary blood.
abstract: A radioimmunoassay technique for the estimation of T3 and T4 levels in capillary blood is described and evaluated in comparison to a simultaneously drawn and equally analyzed sample from the cubital vein. A total number of 236 samples thus received from the capillary and the vein from euthyroid, hypo- and hyper-thyroid patients were collected. For both T3 and T4 a good correlation (r = 0.94) was obtained. The clinical implication would especially be for paediatric practice.
mesh_terms: D002196:Capillaries; D006801:Humans; D006980:Hyperthyroidism / Q000097:blood; D007037:Hypothyroidism / Q000097:blood; D011863:Radioimmunoassay / Q000379:methods*; D013960:Thyroid Function Tests / Q000379:methods*; D013974:Thyroxine / Q000097:blood*; D014284:Triiodothyronine / Q000097:blood*; D014680:Veins
chemical_list: D014284:Triiodothyronine; D013974:Thyroxine