The Precious study is likely to help determine the frequency (percentage) of subclinical hypothyroidism among pregnant women in Pakistan It will also help to determine the risk factors for developing subclinical hypothyroidism during pregnancy

Inclusion Criteria:

• Subjects must meet all of the following criteria to be enrolled into the study

• Patient between 18-45 years of age; is pregnant and in First Trimester

• Patient willing to give blood sample for laboratory testing

• Patient willing to provide written authorization to obtain data for the study

• Exclusion Criteria:

• Patients suffering from any

  • Chronic Cardiac Disease - Chronic Cardiac Failure, Cardiac Arrhythmia
  • Hepatic Disorder : Cirrhosis
  • Renal Disease : Patients on dialysis and Transplant Therapy
  • Respiratory Disorder

• Subjects with history of non-thyroid malignancy

• Patient currently taking medication for hyperthyroidism

• Active systemic infection

• Patient with physical or mental impairment

• Patients on systemic steroid therapy or lithium therapy

• Patients in second or third trimester of pregnancy

• Patient not willing to give blood sample for laboratory testing

• Patient not willing to provide written authorization to obtain data for the study

Primary Care Clinic/Private Clinic