Discover what non-reactive HIV test results really mean and why testing timing, window periods, and retesting are crucial for ...

In some cases, the test is done with a urine sample. These tests are performed when the IFE blood test doesn't give normal results. You don't have to do anything before going for this test.

The ELISA test is a medical test that measures your blood’s antibodies. Learn about how it can help you get better medical treatment, what to expect, and more.

A CO2 blood test measures the amount of carbon dioxide (CO2) in your blood serum, the liquid part of your blood. It may also be called a carbon dioxide test, or a bicarbonate test. You may receive ...

RDW stands for "red cell distribution width." It is a way of measuring how varied the shape and size of red blood cells are in a sample.

A new blood test can detect leukemia and blood aging risks non-invasively, potentially replacing painful bone marrow biopsies ...

Scientists have developed a “highly sensitive” blood test that could detect signs of cancerous tumours years before the first symptoms appear, an advance that could lead to better treatment outcomes ...

After giving your blood sample for the test, you can return to normal activities. You may feel some discomfort from where the ...

In just 15 minutes, a small, handheld blood test can tell doctors whether a patient has likely suffered a concussion or traumatic brain injury — no brain scan required. After more than a decade ...

Cancer research reveals blood tests can detect tumor-derived mutations years before diagnosis. Johns Hopkins scientists ...