An anion gap is detectable in urine, plasma, or blood. This article focuses on the blood test, also known as the serum anion gap test. It investigates why doctors do the test, what to expect, and ...

Blood tests a doctor may use to diagnose anemia include a complete blood count, iron tests, and more. Learn the types of anemia blood test.

Numerous blood panels test specific aspects of your health, including looking at the cellular components of your blood, biomarkers of kidney and liver function and more.

An arterial blood gas test can find ways to help your lungs do their job. Find out when you get it and what the results mean.