Mental health
Learning Center
Fecal occult blood test
Learn how healthcare professionals use fecal occult blood tests, such as the fecal immunochemical test, to screen for colon cancer.
Friendships: Enrich your life and improve your health
Friendships can have a major impact on your health and well-being. Follow these tips to make and sustain lasting friendships.
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.
Glucose challenge test
Know how to prepare for this gestational diabetes screening test.
Glucose tolerance test
These simple blood tests are performed to screen for diabetes. Your healthcare professional may suggest one or more of these tests depending on your risk factors.
HPV test
This test can help show the risk of cervical cancer. Learn more about how to prepare and what the results may mean.
Hematocrit test
Learn about this red blood cell blood test, including why it's used and what to expect.
High blood pressure in children
Children can develop high blood pressure for the same reasons adults do — excess weight, poor nutrition and lack of exercise.
Hodgkin's vs. non-Hodgkin's lymphoma: What's the difference?
Learn how types of lymphomas are determined using lab tests to examine cancer cells.
Holter monitor
This wearable device keeps track of the heart's rhythm during daily activities. Learn when you might need one and what to expect.
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