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 an Arterial Blood Gas Test (ABG)? An arterial blood gas (ABG) test measures oxygen and carbon dioxide levels in your blood. It also measures your body’s acid-base (pH) level, which is usually ...

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.

Professionals in certain positions where they are responsible for the safety of others may need to take a 10-panel drug test. It tests for the misuse of prescription and illegal drugs. The 10-panel ...

We regularly answer frequently asked questions about life during the coronavirus crisis. If you have a question you'd like us to consider for a future post, email us at goatsandsoda@npr.org with the ...

For more than 60 years we've been answering the objective questions—How fast? How quick? How much grip?—comprehensively, and with an authority based in experience that our readers have come to rely on ...

Standardized, repeatable testing is central to all of the 1,500-plus reviews we publish annually. Here's how we test every laptop that hits the bench at PC Labs using 24 different benchmarks. From the ...