An ESR test measures inflammation levels in the body. Doctors may use it and other tests to diagnose an inflammatory condition or monitor an existing condition, such as arthritis. An erythrocyte ...

An exercise stress test is used to determine how well your heart responds during times when it’s working its hardest. During the test, you’ll be asked to exercise — typically on a treadmill — while ...

Electromyography (EMG) is a diagnostic test that measures how well the muscles respond to the electrical signals emitted to specialized nerve cells called motor nerves. EMG tests are safe and pose ...

In a stress test — also known as an exercise or treadmill test — a doctor monitors a person’s heart rate as they exercise or undergo a chemical stressor. It can show how well a person’s heart works ...

A nicotine test is a way for some employers, insurance companies, and other institutions to test for nicotine, which is the active ingredient in tobacco products. If you’ve ever applied for a new job, ...