Consumer health 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.
STD testing: What's right for you?
Find out how your risk factors affect the types of tests you'll need for sexually transmitted infections (STIs).
Rheumatoid factor
Rheumatoid factor — This blood test can help diagnose autoimmune disorders such as rheumatoid arthritis, Sjogren syndrome and lupus.
Rett syndrome
This rare genetic disorder affects the way the brain develops, causing a progressive inability to use muscles for eye and body movements and language.
Reactive airway disease: Is it asthma?
Reactive airway disease is a general term that doesn't indicate a specific diagnosis.
Prostate cancer: Does PSA level affect prognosis?
Find out what your PSA level may mean for your prostate cancer prognosis.
Prostate cancer screening: Should you get a PSA test?
Learn about the pros and cons of the PSA test so you're ready to talk about prostate cancer screening with your doctor.
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.
Personal health records and patient portals
Personal health records and patient portals make it easy to access your medical information using your computer or smartphone.
Refine Your Search
Type
- All
- TestProcedure (37)
- Answer (28)
- Article (19)
- Video (11)
- Disease (2)
- FirstAid (1)
- HealthTip (1)
- SlideShow (1)
Gender
Age
- All
- 45 to 64 middle
- 19 to 44 younger
- 65 to 80 older
- 13 to 18 years teen
- 15 months
- 12 months
- 9 months
- 06 to 12 years elementary/preteen
- 03 to 5 years preschool
- 80 and over
- 16 months to 2 years toddler
- 6 months
- 02 months to 2 years infant/toddler
- 11 to 12 years preteen
- 00 birth to 01 month newborn
- 19 to 28 young adult
- 4 months
Focus
- All
- Test
- Definition