A complete blood count (CBC) is a common test to diagnose anemia by measuring red blood cell count, hemoglobin, and hematocrit levels. Iron deficiency is a common cause of anemia, and doctors may ...

Tuberculosis (TB) is an infectious disease that attacks the lungs, though it can affect almost any body area. Two types of tests can identify a TB infection, but how often you should get a ...

The time it takes to collect a sample for a flu test is usually less than a minute, but the results can take from 15 minutes to a few hours, depending on the test type. Several types of flu tests are ...

It’s best to test for RSV soon after your symptoms start. That’s because you’ll likely have the most virus in your system then. As you get better, the amount of virus will go down. (Photo Credit: ...

No single blood test can diagnose liver cancer, but liver cancer blood tests can detect signs of liver dysfunction. Depending on a person’s signs and symptoms, a doctor may recommend further testing, ...

Each week, we 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 ...