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Table 1 Laboratory findings in 2 girls with rapid reversal of severe hypothyroidism

From: Case report: rapid spontaneous recovery from severe hypothyroidism in 2 teenage girls

  Age Total T4
nmol/L*
Free T4
pmol/L**
TSH
miU/L
TPO Ab units/ml # Comments
Case 1 13.0 14.2   468   
  13.1 86.4   17.8   
  13.3   15.5 0.21 630  
  13.9 73.5   4.3   
  14.8 <6.4   262 1432  
Case 1 DZ twin sister 12.5   0.65 915   
  13.9 105   2.45   75 μg T4
  14.0   5.2 77 528 5 weeks off T4
Case 2 11.0 87.7   3.7   
  13.7 7.7   183   T3 0.85 nmol/L
  13.8   11.6 15.8 291  
  13.9 69.7 13.8 3.55   
  14.5 78.5   5.1   
  1. *Normal range 65–155 nmol/L.
  2. **Normal range 11.6–20.6 pmol/L.
  3. #Normal range <35 units/ml.