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Genetic testing
Genetic testing: Learn why it's done, how to prepare and what to expect from diagnostic tests, carrier tests, prenatal tests and newborn screening.
Feminizing surgery
Find out how feminizing surgical procedures can help better align the body with a person's gender identity.
Fecal occult blood test
Learn how healthcare professionals use fecal occult blood tests, such as the fecal immunochemical test, to screen for colon cancer.
Eye dilation: Necessary with every eye exam?
Eye dilation is part of a comprehensive eye exam. How often you need it depends on your age and health risks.
Esophageal manometry
This test involves placing a thin, pressure-sensitive tube through your nose into your esophagus to measure pressure as you swallow.
Endoscopic ultrasound
Learn about this imaging test that uses both endoscopy and ultrasound. The test helps diagnose diseases related to digestion and the lungs.
Ejection fraction: What does it measure?
This measurement, commonly taken during an echocardiogram, shows how well the heart is pumping. Know what results mean.
Doppler ultrasound: What is it used for?
A Doppler ultrasound measures blood flow and pressure in blood vessels.
Different types of COVID-19 vaccines: How they work
Find out how different COVID-19 vaccines cause your body to create antibodies that will fight the COVID-19 virus.
Diagnosing Alzheimer's: How Alzheimer's is diagnosed
Even though there isn't a cure, early diagnosis of Alzheimer's dementia is important.
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