Consumer health basics
Learning Center
Testicular exam
Examining your testicles regularly can help you notice changes when they occur and identify testicular problems.
Stress test
This test gives important information about your heart health. Know how to prepare and what to expect.
Stool DNA test
Learn about this noninvasive colon cancer screening test that can detect DNA changes in cells collected from a stool sample.
Stereotactic body radiotherapy
This type of radiotherapy uses highly targeted radiation beams to treat tumors in all parts of the body.
Spirometry
This common test shows how well your lungs work and helps diagnose conditions that affect the ability to breathe.
Sentinel node biopsy
Learn what to expect during this procedure to remove lymph nodes for testing. The results can show whether cancer has spread.
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.
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