Sep 12, 2025 · Laboratory tests help doctors determine what is going on within your body. Many factors affect test results. Find a list of those factors.

Jun 24, 2022 · All laboratories that perform health-related testing for disease prevention, diagnosis, or treatment, including genetic testing, are subject to federal regulatory standards called the Clinical …

Medical Tests Learn about medical tests, including what the tests are used for, why a doctor may order a test, how a test will feel, and what the results may mean.

A lab test checks a sample of your blood, urine, or other body fluid or tissue to learn about your health. Learn more about how lab tests are used.

A BUN, or blood urea nitrogen test, measures the amount of urea nitrogen in your blood. Urea nitrogen is a waste product that forms as your body breaks down proteins.

A bone density scan is an imaging test that measures the minerals in your bone. It's used to estimate bone strength and check for osteoporosis.

An alkaline phosphatase (ALP) test measures the amount of ALP in your blood. It is commonly used to diagnose liver damage or bone disorders. Learn more.

Your provider will consider your symptoms, medical history, and the results of other blood tests to understand your red blood cell count results. Learn more about laboratory tests, reference ranges, …

Learn about different lab tests and understand common terms to improve your health literacy.

They will consider your symptoms, medical history, and the results of other blood tests to determine if additional tests are needed to make a diagnosis. Learn more about laboratory tests, reference …