T3 T4 Free T3 and T4 tests

Thyroid gland produces hormones which are called T3 and T4. Their role is in regulation of usage of energy in the body. Major amount of these hormones are bound to protein and a small percentage is free.

This panel is recommended in case of symptoms presenting hypothyroidism or hyperthyroidism.

Symptoms of hypothyroidism

  • Weight gain
  • Dry skin
  • Constipation
  • Cold intolerance
  • Puffy skin
  • Hair loss
  • Fatigue
  • Menstrual irregularity in women

Symptoms of hyperthyroidism

  • Increased heart rate
  • Anxiety
  • Weight loss
  • Difficulty sleeping
  • Tremors in the hands
  • Weakness
  • Diarrhea
  • Puffiness around the eyes, dryness, irritation, or bulging of the eyes