Find the right blood test for you.

Measures dihydrotestosterone, a more potent hormone the body converts testosterone into. Can help assess hair loss, prostate conditions and disorders of sexual development. View details →

Measures antibodies to double-stranded DNA. Highly specific to lupus, and levels often track how active the condition is. View details →

Measures IgG antibodies to the Epstein-Barr virus early antigen D. Usually added to a standard EBV panel when the timing or activity of an infection is unclear. View details →

Measures estradiol, the main form of estrogen during the reproductive years. Can help assess menstrual cycle problems, fertility, menopause and some hormone therapies. View details →

Measures estradiol using liquid chromatography with mass spectrometry, a method suited to the lower concentrations seen in men, children and after menopause. View details →

Measures the combined level of estrogens in the blood as a single total. Sometimes used for a general picture of estrogen activity rather than individual hormones. View details →

Measures estrone, a weaker estrogen that becomes the main form after menopause. Can help assess hormone status where estradiol alone does not give the full answer. View details →

Measures ferritin, the protein that stores iron in the body. The most useful single test for iron deficiency, though results are affected by inflammation. View details →

Measures fibrinogen, the protein that forms the mesh of a blood clot. Can help assess bleeding and clotting problems, and rises as part of an inflammatory response. View details →

Measures folate, a B vitamin needed for making DNA and red blood cells. Can help assess a deficiency, which is a cause of anemia. View details →

Measures folate inside red blood cells, which reflects longer-term status than a serum folate. Can help assess deficiency where recent meals may have skewed a serum result. View details →

Measures fructosamine, which reflects average blood sugar over the past two to three weeks. Useful where HbA1c cannot be relied on, such as in some blood disorders. View details →