A fasting blood test requires you to avoid eating or drinking anything for some time before your test. The amount of time to fast varies for different tests. It’s generally in the range of 8 to 12 ...

To become a U.S. citizen, you now have to take a citizenship test that’s twice as long as it was before, with more than half ...

The FM/a test is still new and subject to research. Many doctors don’t use it yet, and insurers may not cover the cost. Doctors may still use current diagnostic criteria as confirmation. Fibromyalgia ...

A false positive result is possible with a rapid COVID-19 test. It happens when a person does not have COVID-19 but still tests positive for the disease. People can use a rapid COVID-19 test at home ...

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

USCIS implements 2025 Naturalization Civics Test for N-400 filings on Oct. 20, 2025. Test expands question bank to 128 and raises pass mark to 12 correct answers. Applicants filing before Oct. 20 keep ...

With COVID-19 cases on the rise again in the U.S., Americans are reviving a familiar precautionary measure: Screening for the virus using rapid at-home tests. Many people still have kits the ...

Your support goes further this holiday season. When you buy an annual membership or give a one-time contribution, we’ll give a membership to someone who can’t afford access. It’s a simple way for you ...

The 6 Best Free Speed Test Apps to Check Internet Performance Your email has been sent In the remote work era, reliable Wi-Fi is a must. From testing network performance to locating nearby ...

If you’re waiting for lab test results to come back or you’re trying to figure out what they mean, the process and all those medical terms and numbers can be confusing. There are thousands of lab ...

What Is a Food Allergy Test? A food allergy test is a skin or blood test that helps you and your doctor figure out if you’re allergic to specific foods and which ones. Or if you think certain foods ...