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The A1C test shows a patient's average blood glucose level over the last three months, expressed as a percentage, according to the National Institute of Diabetes and Digestive and Kidney Diseases. An estimated average gl... More »

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The A1c test is important for diabetes because it helps with diabetes management and research, states the National Institute of Diabetes and Digestive and Kidney Diseases. It also helps doctors judge the effectiveness of... More »

www.reference.com Health Diagnostics & Imaging

A virtual colonoscopy is a procedure that uses X-rays or magnetic resonance imaging to create images of the colon and the rectum, according to the National Institute of Diabetes and Digestive and Kidney Diseases. A virtu... More »

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During an upper gastrointestinal series, a patient stands or sits in front of an X-ray machine and swallows barium, says the National Institute of Diabetes and Digestive and Kidney Diseases. The barium swallow coats the ... More »

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Urodynamic testing for female urinary incontinence is a variety of procedures that evaluate the performance of the bladder, urethra and sphincters in storing and releasing urine, according to the National Institute of Di... More »

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During a renal artery Doppler ultrasound, a technician places ultrasound gel on the skin and uses a device called a transducer to measure the blood flow through the renal arteries, explains the National Institute of Diab... More »

www.reference.com Health Diagnostics & Imaging

A standard barium upper gastrointestinal series involves swallowing a barium drink while taking simultaneous X-rays of the upper gastrointestinal tract, explains the National Institute of Diabetes and Digestive and Kidne... More »

www.reference.com Health Diagnostics & Imaging