Find the right blood test for you.

Measures TGF-beta 1, a signaling protein involved in immune regulation, tissue repair and scarring. Used mainly in specialist assessment and research settings. View details →

Measures total IgE, the antibody class involved in allergic reactions. Can help assess allergic conditions, though it does not identify what someone is allergic to. View details →

Measures IGF binding protein 2, one of the proteins that carries IGF-1 in the blood and regulates its activity. Used mainly in specialist hormone assessment. View details →

Measures IGF binding protein 3, the main carrier of IGF-1 in the blood. Often measured alongside IGF-1 when assessing growth hormone activity. View details →

Measures total IgA, an antibody that protects surfaces such as the gut and airways. Also checked before celiac testing, since IgA deficiency makes those results unreliable. View details →

Measures inhibin B, produced by developing ovarian follicles and by the testes. Can help assess ovarian reserve and sperm-producing function. View details →

Measures fasting insulin, the hormone that moves glucose from blood into cells. Can help assess insulin resistance, often before fasting glucose changes. View details →

Measures interleukin-1 beta, a signaling protein that drives the inflammatory response. Used mainly in specialist assessment of inflammatory conditions and in research. View details →

Measures interleukin-6, a signaling protein released early in inflammation that triggers the liver to produce CRP. Rises sooner than CRP but is less stable. View details →

Detects antibodies that block intrinsic factor, the protein needed to absorb vitamin B12. Can help confirm pernicious anemia as the cause of a B12 deficiency. View details →

Measures iodine in a urine sample, which reflects recent dietary intake. Iodine is needed to make thyroid hormone, and both too little and too much can affect the thyroid. View details →

Measures iodine in the blood. Iodine is required to make thyroid hormone, and testing can help assess both insufficient intake and excessive exposure. View details →