This article was reviewed by Felix Gussone, MD. In this guide, we’ll break down what most biomarker lab tests measure, how to prepare for them, and what to do once you receive your results. Not ...

COPD requires regular monitoring through tests like spirometry to assess the condition’s severity and aid in an individualized treatment plan. COPD is a progressive lung condition that makes breathing ...

Learn about the many tests and examinations your blood sample undergoes in a lab. Giving a blood sample during a doctor’s visit is a common procedure. Discover the dizzying array of automated tests ...

Bonsack is a patient advocate based in Moab, Utah. In the midst of a health crisis a few years ago, doctors repeatedly checked my thyroid-stimulating hormone (TSH), revealing an odd pattern: My test ...

What Is a RDW Blood Test? An RDW blood test – also known as a red blood cell distribution width blood test – is a measure of the difference in your red blood cells’ size and volume. RDW is one part of ...

Brody H. Foy does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...