THYROID FUNCTION TEST

THYROID GLAND

• It is an endocrine gland situated at the root of the throat.
• It has two fairly lateral lobes, which are symmetrical.
• These lobes are present one on the either side of trachea.
• They are connected by thin portion of thyroid tissue called as isthmus.o

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THYROID HORMONES

• T3 is thyroxin (or) Tri Iodo thyronine
• T4 is Thyronine (or) Tetra Iodo Thyronine
• Calcitonin

THYROID FUNCTIONS

• They are influences growth and metabolism
• They are needed for emotional responsiveness, cerebral and sensory activities.

CHOLINERGIC FUNCTION

• They hormones increase oxygen consumption, energy production and BASAL METABOLIC RATE

METABOLIC FUNCTIONS

• Carbohydrates metabolism
• Protein metabolism
• Lipid metabolism
• And maintenance of heart rate

THYROID DISEASE

• Hyper thyroidism
• Hypo thyroidism
• Goiter

THYROID FUNCTION TESTS

• T3 - 0.69 - 2.02 mg/ml
• T4 - 5.0 - 12.5 mcg/dl
• TSH - 0.3 - 5.0 mcIU/ml

THYROID FUNCTION TESTS

• Radio Immuno assay (RIA)
• Enzyme linked immunosorbant assay (ELISA)