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Introduction A shoulder X-ray is a diagnostic imaging test used to visualize the bones and joints of the shoulder. It is a quick, non-invasive proced...

Introduction The sickling test is a diagnostic blood test used to detect sickle cell disease or sickle cell trait. These conditions are caused by an ...

Introduction A skin biopsy is a medical procedure in which a small sample of skin is removed and examined under a microscope to diagnose various skin...

Introduction A sleep study, also known as polysomnography, is a diagnostic test that records physiological data during sleep to identify and diagnose...

Introduction A slit lamp exam is a diagnostic procedure used by eye care professionals to examine the structures of the eye, including the cornea, le...

The Sniff Test is a simple yet effective diagnostic tool used to assess the sense of smell, also known as olfaction. This test can provide valuable in...

Overview The sodium test is a vital diagnostic tool used to measure the levels of sodium in the blood. Sodium is an essential electrolyte that helps ...

Overview Sonography, also known as ultrasound imaging, is a non-invasive diagnostic technique that uses high-frequency sound waves to create detailed...