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 ...

An at-home allergy test is not a good substitute for an in-office skin test. But it’s an option that may be helpful short-term before you’re able to talk with a specialist. Allergies affect a lot of ...

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: ...

Blood tests are an important tool for diagnosing heart failure. Doctors can also use blood tests to monitor treatment progress and check for potential complications. Doctors may order blood tests for ...

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 ...