TSH, T4, ft4l (panel)

Measure Definition:

A thyroid stimulating hormone (TSH) test is a common blood test used to evaluate how well the thyroid gland is working. The thyroid gland is located at the lower front of the neck. TSH is produced by the pituitary, a pea-sized gland located at the base of the brain.


Laboratory Procedure

Construct Definition (and Source):

Any procedure that involves testing or manipulating a sample of blood, urine, or other body substance in a laboratory setting. (NCI)

Selected References

Citation PubMed ID

Rosenbaum M, Hirsch J, Murphy E, Leibel R. The effects of changes in body weight on carbohydrate metabolism, catecholamine excretion, and thyroid function. Amer J Clin Nutr 2000;71:1421-1432.

Sumithran P, Prendergast L, Delbridge E, et al. Long-term persistance of hormonal adaptations to weight loss. N Eng J Med 2011;365:1597-604.

Caiozzo V, Baker M, Baldwin K. Novel transitions in MHC isoforms: separate and combined effects of thyroid hormone and mechanical unloading. J Appl Physiol 1998;85:2237-2248.

Canepari M, Cappelli V, Pellegrino M, Zanardi M, Reggiani C. Thyroid hormone regulation of MHC isoform composition and myofibrillar ATPase activity in rat skeletal muscles. Arch Physiol Biochem 1998;106:308-315.