Find the right blood test for you.

Measures follicle stimulating hormone, which drives egg development in the ovaries and sperm production in the testes. Can help assess fertility and menopausal status. View details →

Measures GGT, an enzyme concentrated in the liver and bile ducts. Can help assess liver and bile duct conditions, and clarify the cause of a raised alkaline phosphatase. View details →

Measures growth hormone, released by the pituitary gland in pulses through the day. A single measurement is limited, so results are usually interpreted with other tests. View details →

Measures the amount of hCG in the blood rather than simply whether it is present. Used to confirm and follow early pregnancy, and in certain other clinical situations. View details →

Detects Helicobacter pylori, a stomach bacterium linked to ulcers and gastritis, using a breath sample. Can help confirm a current infection or check that treatment worked. View details →

Measures hemoglobin, the protein in red blood cells that carries oxygen. A low result is the standard definition of anemia. View details →

Measures the proportion of hemoglobin with glucose attached, reflecting average blood sugar over about three months. Used to diagnose and monitor diabetes. View details →

Measures antibodies to the hepatitis B surface antigen, which indicate immunity. Commonly used to confirm that vaccination has worked or that a past infection has cleared. View details →

Detects antibodies to hepatitis C. A positive result means the virus has been encountered at some point, and needs a follow-up test to show whether infection is still present. View details →

Measures high-sensitivity C-reactive protein, a marker of low-level inflammation in the body. Often measured alongside cholesterol to help assess cardiovascular risk. View details →

Detects both HIV antibodies and the p24 antigen, which appears earlier than antibodies. This fourth generation approach shortens the window after exposure before HIV can be found. View details →

Measures homocysteine, an amino acid that rises when B vitamins are low. Raised levels are associated with cardiovascular risk and can indicate B12 or folate deficiency. View details →