Figure 2From: Ectopic TSH-secreting pituitary tumor: a case report and review of prior cases TRH stimulating and octreotide inhibition tests. The unit for FT3 and FT4 is pmol/L, for PRL is ng/ml, and for sTSH is μIU/ml. A, TRH stimulating test. B, Octreotide inhibition test.Back to article page