Triiodothyronine (T3)

T3 is a hormone synthesized and secreted by thyroid follicular cells. Before the examination, you should stop eating foods rich in iodine, such as kelp, seaweed, sea fish and shrimp, etc., depending on the amount of food, stop eating for 2 to 4 weeks. Basic Information Specialist classification: growth and development check classification: endocrine examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Found in hypothyroidism, hypothyroxin-binding globulinemia. Normal value: Serum T3: 1.6-3.0 nmol/L Above normal: Found in hyperthyroidism, triiodothyronine type hyperthyroidism early crisis, iodine deficiency goiter, high thyroid combined globulinemia. negative: Positive: Tips: Before the inspection, you must stop eating foods rich in iodine, such as kelp, seaweed, sea fish and shrimp, etc., depending on the amount of food, stop eating for 2-4 weeks. Normal value 1.6 to 3.0 nmol/L. Clinical significance Increased in hyperthyroidism, early iodine-thyroid hyperthyroidism, iodine-deficient goiter, and high thyroid-binding globulinemia. Reduction is seen in hypothyroidism, hypothyroxin-binding globulinemia. Low results may be diseases: high hypothyroidism may be diseases: endocrine ocular protrusion, thyroiditis, resting lymphocytic thyroiditis, hyperthyroidism in children, hyperthyroidism in the elderly, thyroid tuberculosis, endocrine disease, Goiter with normal thyroid function, breast hypertrophy in precocious children, and precautions for mammary gland development 1. Before the inspection, you must stop eating foods rich in iodine, such as kelp, seaweed, sea fish and shrimp, etc., depending on the amount of food, stop eating for 2 to 4 weeks. 2. The following drugs should be stopped before the examination. According to the dosage and time, stop taking 2~8 weeks. (1) Iodine-containing drugs, such as iodide, compound iodine solution, iodine-containing tablets, and the like. (2) Drugs that affect thyroid function, such as thyroid tablets, antithyroid drugs, etc. (3) Some Chinese herbal medicines, such as seaweed, kelp, fritillary, burdock, Mutong, etc. 3. The patient should be fasted on the day of the examination. Inspection process Thyroid hormone determination. Not suitable for the crowd Generally no taboos. Adverse reactions and risks Generally not.