Fitness basics
Learning Center
Sed rate (erythrocyte sedimentation rate)
Sed rate is a blood test that can reveal inflammatory activity in your body. It's often used to help diagnose conditions affecting your joints or muscles.
SVT ablation
Discover how cold or heat energy is used to correct fast and erratic heartbeats, such as atrial tachycardia and AV node reentrant tachycardia.
Rheumatoid factor
Rheumatoid factor — This blood test can help diagnose autoimmune disorders such as rheumatoid arthritis, Sjogren syndrome and lupus.
Radiation therapy
Radiation therapy is a common means of treating many types of cancer. Find out what to expect during your radiation therapy treatment.
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.
Positron emission tomography scan
Learn how this imaging scan can play an important role in early detection of health problems, such as cancer, heart disease and brain disorders.
Polysomnography (sleep study)
Your health care provider may order this test if a sleep disorder such as sleep apnea is suspected. Learn how to prepare and what to expect.
Pediatric cervical spine surgery
This surgery can treat injuries and conditions that are present at birth and that affect the neck area of the spine.
Pap smear
A Pap smear, also called a Pap test, is used for cervical cancer screening. Learn how it's done and what the results might mean.
Palliative care
Learn what to expect with this care approach that offers symptom relief for seriously ill people of any age.
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