Use

Efficient and cost-effective evaluation of thyroid function by first measuring TSH (thyroid-stimulating hormone) and automatically reflexing to free T4 if TSH is abnormal. Since TSH serves as the primary regulator of thyroid activity, an abnormal result can indicate underlying hypothyroidism or hyperthyroidism, prompting further assessment with free T4 to determine the severity and nature of dysfunction. This streamlined testing strategy aids in the early detection and management of thyroid disorders, which are crucial for maintaining optimal metabolism, energy levels, cognitive function, and overall well-being.

Preparation 

Samples should not be collected during or soon after the administration of heparin. It is recommended to stop biotin consumption at least 72 hours prior to the collection of a sample.