T3 (Triiodothyronine):

- 25 ug 3 times/day by mouth x 8 days prior to control uptake test or scan. (1)

T4 (Thyroxine):

- 0,2 mg /day by mouth x 21 days prior to control uptake test or scan. (2)

1  Park HM, The Thyroid Gland in Henkin RE et al. Nuclear Medicine. Mosby St Louis 1996, p 838.

2  Sisson JC, Thyroid in Paul J Early and D Bruce Sodee. Principles and Practice of Nuclear Medicine. Mosby, St Louis, p 629, 1995.