Consumer health basics
Learning Center
Lumbar puncture (spinal tap)
Learn about lumbar puncture, which removes a sample of cerebrospinal fluid to find infections, bleeding and other conditions. It also is called a spinal tap.
Palliative care
Learn what to expect with this care approach that offers symptom relief for seriously ill people of any age.
Ear tubes
Learn about the procedure for placing ear tubes used to treat middle ear problems.
Pulmonary valve repair and replacement
A congenital heart defect can cause a leaky or blocked pulmonary valve. Know the symptoms and how it's treated.
Allergy skin tests
Considering skin testing for your allergies? Learn about the risks, results and what to expect during testing.
COVID-19 diagnostic testing
Find out how COVID-19 diagnostic testing is done to learn if you're currently infected with SARS-CoV-2, the virus that causes coronavirus disease 2019.
Urinalysis
This common lab test checks urine for signs of disease and for clues about overall health.
CT scan
This imaging test helps detect internal injuries and disease by providing cross-sectional images of bones, blood vessels and soft tissues inside the body.
Withdrawal method (coitus interruptus)
The withdrawal method — pulling the penis out of the vagina before ejaculation — isn't the most effective birth control. Learn about the pros and cons.
COVID-19 antibody testing
Learn how COVID-19 antibody testing is done to find out if you've had a past infection with SARS-CoV-2, the virus that causes coronavirus disease 2019.
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