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Table 2 Frequency of biochemical thyrotoxicosis (sTSH below normal level and FT4 above normal level) in all patients (= 24), of which 17 patients with complete Tg data

From: Clinical study on the status of transient thyrotoxicosis after surgery for secondary hyperparathyroidism patients with end-stage renal disease and normal thyroid function

 First day after surgeryThird day after surgeryFifth day after surgery
T3↑13 (51.2)11 (45.8)5 (20.8)
FT3↑20 (83.3)19 (79.1)15 (62.5)
T4↑13 (51.2)14 (58.3)8 (33.3)
FT4↓13 (51.2)20 (83.3)13 (51.2)
sTSH↓2 (8.3)10 (41.7)16 (66.7)
sTSH↓ and FT4↑1 (4.2)8 (33.3)13 (54.2)
Tg17 (100)14 (82.4)6 (35.3)
  1. T3 triiodothyronine, T4 thyroxine, fT3 free triiodothyronine, fT4 free thyroxine, sTSH high sensitivity thyrotropin stimulating hormone
  2. ↑ Biochemical parameter above normal maximum
  3. ↓ Biochemical parameter below normal minimum. Frequency (percent)