My wife in second trimester of pregnancy. Her
thyroid readings are
T3 - 1.58 ng/ml
T4 - 15.2 ug/Do
TSH - 1.94 ulu/ml
Interpretation:
• Primary hyperthyroidism is accompanied by elevated serum T3 and T4 values alongwith depressed TSH levels
• Primary hypothyroidism is accompanied by depressed serum T3 and T4 values and elevated serum TSH levels.
• High T3 levels coupled with normal T4 and suppressed TSH may be seen in T3 toxicosis.
Note: Total T3 and total T4 are highly bound to plasma proteins and are amenable to fluctuations with plasma protein content as
well as due to binding defects in the thyroid hormone binding proteins.
Should I worry for increased T4 ?