trans-triiodothyronine

Anti-triiodothyronine is a product of thyroxine deiodination in peripheral tissues. Anti-triiodothyronine is low in serum and 97% is derived from T4 deiodination. Although its biological activity is very low, its metabolism is slow and there is no gender difference in serum concentration. Clinically used to detect thyroid secretion and peripheral blood thyroid hormone metabolism. Detection of anti-triiodothyronine for the diagnosis and evaluation of thyroid dysfunction. Basic Information Specialist classification: growth and development check classification: endocrine examination Applicable gender: whether men and women apply fasting: not fasting 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 to 4 weeks. Normal value 0.2 to 0.8 nmol/L. Clinical significance Reduce hypothyroidism. Elevation is seen in hyperthyroidism, chronic severe hepatitis, cirrhosis, diabetes, renal insufficiency, uremia, cardiovascular and cerebrovascular diseases, and severe malnutrition. The result is low, the disease may be high: the result of hypothyroidism is high, the disease may be: the precautions for hyperthyroidism in children Taboo before inspection: 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, etc. (2) Drugs that affect thyroid function, such as thyroid tablets and antithyroid drugs. (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. Requirements for inspection: Explain to the doctor the history of medication and the food that has been eaten recently. Inspection process Ordinary test tube fasting blood 2-3ml in time for inspection. Not suitable for the crowd People who took propylthiouracil, glucocorticoids, choledochrome and other drugs before the test. Adverse reactions and risks No complications.