This test measures the amount of carbon dioxide in your blood. Normally, carbon dioxide in your bloodstream causes no problems, but if you have far too much or too little of it, you may have a disease or a medical emergency.

This is a 2-part test to look for THC in your urine. THC is the active ingredient in marijuana.

This test looks for harmful bacteria called Campylobacter in a culture sample from a bowel movement (stool).

This test measures the level of calcium in your urine. If too much calcium builds up in your urine, you may be at risk for kidney stones.

This test measures the amount of calcium in your blood. It can be used to diagnose many conditions, such as kidney disease.

This blood test measures the level of calcitonin in your blood. Calcitonin is a hormone made by your thyroid gland.

This blood test looks at how well your pancreas makes insulin. It's used to help diagnose blood sugar disorders, such as low blood sugar and diabetes.

This test looks at fluid from your spinal cord to find out if you have an illness called brucellosis.

This blood test checks for mutations for the BRCA 1 and BRCA 2 genes, which can increase the risk for breast and ovarian cancer.

This test measures the amount of bicarbonate, a form of carbon dioxide, in your blood.