Eye care
Learning Center
Doppler ultrasound: What is it used for?
A Doppler ultrasound measures blood flow and pressure in blood vessels.
Ejection fraction: What does it measure?
This measurement, commonly taken during an echocardiogram, shows how well the heart is pumping. Know what results mean.
Eye dilation: Necessary with every eye exam?
Eye dilation is part of a comprehensive eye exam. How often you need it depends on your age and health risks.
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.
How do COVID-19 antibody tests differ from diagnostic tests?
Antibody testing shows whether you've had the COVID-19 virus in the past. It's not the same as testing to see whether you have the virus now.
Induced lactation: Can I breastfeed my adopted baby?
With time and dedication, breastfeeding without pregnancy (induced lactation) might be possible.
Infant growth: What's normal?
Infant growth rates depend on various factors. Consider what's typical during baby's first year.
Is a home sperm test useful?
Using a home sperm test to check your fertility may not provide a clear answer.
Latent autoimmune diabetes in adults (LADA): What is it?
Latent autoimmune diabetes in adults (LADA) is a slow-developing form of diabetes.
MRI: Is gadolinium safe for people with kidney problems?
Older gadolinium contrast agents used with MRI posed a risk for people with severe kidney failure. Newer versions are much safer.
Refine Your Search
Type
- All
- Answer
Gender
Age
- All
- 19 to 44 younger
- 45 to 64 middle
- 00 birth to 01 month newborn
- 02 months to 2 years infant/toddler
- 06 to 12 years elementary/preteen
- 80 and over
- 65 to 80 older
- 13 to 18 years teen
- 03 to 5 years preschool
- 02 to 15 months infant