5A06
category
Sick-euthyroid syndrome
Definition
The term sick-euthyroid syndrome may occur in fetal life, acute or chronic illness, exhausting exercise or starvation, which don't result from a thyroid disorder, and which may be present separately or in combination: 1) Primary low-T3 syndrome resulting from hypodeiodination 2) Secondary low-T3 syndrome caused by low-T4 syndrome 3) Thyrotropic adaptation resulting in low-TSH-low-T4 syndrome 4) Impaired plasma protein binding of thyroid hormones 5) Increased concentrations of reverse T3 6) Increased concentrations of 3,5-diiodothyronine (3,5-T2) 7) Measurement artifacts resulting from pathological blood components including free fatty acids, antibodies and drugs.
Also indexed as
ESS - [euthyroid sick syndrome]Low-T3 syndromeNTIS - [non-thyroidal illness syndrome]Sick-euthyroid syndromeTSCITUS - [thyroid allostasis in critical illness, tumours, uraemia and starvation]