The barium swallow is a specialized radiology technique that uses X-rays and a special contrast known as barium. The presence of...

A treadmill stress test is an electrocardiogram (ECG) used to assess the cardiovascular condition during physical effort. While you are...

Spirometry, often called a pulmonary function test, measures how much air you can blow out from your lungs and how...

An ambulatory electrocardiogram is a test that records the heart rate and rhythm continuously during a period of either 72...

An electrocardiogram (ECG) at rest measures and records the electrical activity of the heart to determine if it is normal or irregular...

Using a portable monitor, the test records blood pressure at regular intervals within a 24-hour period. The blood pressure test...

 A computed tomography (CT) scan is a computer-assisted X-ray test that uses special equipment to create cross-sectional images and detailed...

An ultrasound exam uses high-frequency sound waves to look at internal organs. As the sound waves are bounced off the...

The human body has over 600 voluntary muscles controlled by the brain. When an effort is required, the brain uses...

A mammography uses X-rays to produce images of the internal breast structure. The exam is used for screeing purposes and...