Eurofins Biomnis code

TSH

Synonyms

• Endocrinology
• Thyroid-stimulating hormone - Third generation
• Thyroid-stimulating hormone - third generation
• Thyrotropin - ultrasensitive - third generation
• Thyrotropin-releasing hormone - ultrasensitive third generation

Specialty

Biochemistry

Clinical significance

Thyroid-stimulating hormone (TSH or thyrotropin) is a glycoprotein secreted by thyrotrophic cells of the anterior pituitary. It consists of two sub-units:- the alpha sub-unit which is common to FSH, LH and hCG and TSH ;- the beta sub-unit which is biologically specific and antigenically distinct. Its main function is in the regulation of the synthesis and secretion of thyroid hormones. Its levels change over the diurnal cycle with a pronounced sleep/wake pattern. Generally TSH levels are extremely elevated in hypothyroid subjects where ther test shows excellent discrimiation from normal

Preanalytics

• 1 mL :
• serum
•   Reftrigerated

• A tube specifically for this analysis : No

Further information

ATTENTION: interference possible in patients treated with biotin (vitamin B7, B8 or H) or taking any food supplement containing biotin. Essential to STOP treatment 8 days before taking the sample.

Methodology

Electrochemiluminescence

Turnaround time

1 day