A blood test measures levels of thyroid hormone (thyroxine, or T4) and thyroid-stimulating hormone (TSH) in your blood. The pituitary gland releases TSH to stimulate the thyroid to produce its hormones.High thyroxine and low TSH levels indicate that your thyroid gland is overactive. 血液测试测...
TSH levels higher than 4.5 mU/L usually indicate an underactive thyroid (hypothyroidism), and low TSH levels—below 0.4 mU/L—indicate an overactive thyroid (hyperthyroidism).1 However, there are exceptions to these interpretations and variations as to what a "normal" TSH level is. This is be...
You can experience symptoms of hypothyroidism with normal TSH levels. Learn more about when and how this can occur.
When TSH levels reach 2.0 mlU/L, the risk of developing hypothyroidism increases. At these levels, the condition is often called sub-clinical hypothyroidism.During sub-clinical hypothyroidism, patients may suffer subtle symptoms that are often attributed to normal factors, such as growing older or s...
Predictors of AVP and TSH Levels and the Timing of First Voiding in the Newborn TUOMO VUOHELAINEN, RIITTA OJALA, ANITA VIRTANEN, JARI LAATTA, PERTTI MO¨ RSKY, JUKKA UOTILA, AND OUTI TAMMELA Paediatric Research Centre [T.V., R.O., A.V., J.L., O.T.], University of Tampere and...
The results indicate that neonatal TSH data from the congenital hypothyroidism screening programs can be used for monitoring mild to moderate iodine deficiency regions.doi:10.1007/BF03350296Costante, G.Grasso, L.Ludovico, O.Marasco, M. F.Nocera, M....
Low TSH Congenital Hypothyroidism: Identification of a Novel Mutation of the TSH ß-Subunit Gene in One Sporadic Case (C85R) and of Mutation Q49stop in Two Siblings with Congenital Hypothyroidism AMALIA SERTEDAKI, ANASTASIOS PAPADIMITRIOU, ANTONY VOUTETAKIS, MARIA DRACOPOULOU, MARIA MANIATI-...
Raised serum TSH levels in patients with morbid obesity: is it enough to diagnose subclinical hypothyroidism? Eur J Endocrinol 2009;160:403–8.10.1530/EJE-08-0734Search in Google Scholar PubMed 13. Rotondi M, Cappelli C, Leporati P, Chytiris S, Zerbini F, et al. A hypoechoic pattern of...
The impact of demographic factors on newborn TSH levels and congenital hypothyroidism screening. Clin Endocrinol. 2019;91(3):456–63. Article CAS Google Scholar Hiersch L, Shah BR, Berger H, Geary M, McDonald SD, Murray-Davis B, Halperin I, Retnakaran R, Barrett J, Melamed N. Oral ...
14, 15, 16 In addition, concerns have been raised that LT4 replacement may occur in the presence of borderline elevated TSH levels or in the absence of confirmed TSH elevation,3,4 contradicting explicit recommendations to use repeat TSH testing to confirm a diagnosis of hypothyroidism.12 While ...