The thyroid gland plays an important role in several body functions, and thyroid-related laboratory testing can help evaluate thyroid function. Ayanjana Health Care offers a Thyroid Wellness Profile that includes thyroid-related parameters such as T3, T4, TSH, FT3 and FT4. These tests provide information about different aspects of thyroid hormone status. Thyroid testing may be recommended when a person has symptoms or when a healthcare professional wants to evaluate or monitor thyroid function. Preparation requirements can depend on whether thyroid tests are being performed alone or together with other tests. Patients taking regular medication should follow the instructions provided by their doctor or laboratory regarding medication timing before testing.