Table 1.

Guidelines for measurements of TSH – receptor antibodies in a pregnant woman with Grave's disease ( 9)

Patient status	Antibodies measurement
Euthyroid – previous antithyroid drugs	Not necessary
Euthyroid ± T4 therapy and Previous radioiodine therapy/surgery	Check in early pregnancy:if low or absent no further testing or if high: check fetus and check antibodies in last trimester
Receiving antithyroid drugs during pregnancy	Measure in last trimester