Blood Tests Directory
Blood tests are laboratory tests that analyze various parts of your blood. The blood is usually extracted from a vein or from a finger tip via a finger prick. The blood tests can analyze physiological and chemical balances in the body and can determine types of diseases a person may have, how effective drugs are and organ function.
Heart Failure and the BNP Blood Test
If you have heart failure, you may have heard of a BNP blood test. But what is it?
Blood Testing for Allergies
Blood testing for allergies is sometimes performed instead of skin tests. The experts at WebMD tell you why.
Creatinine and Creatinine Clearance Blood Tests
WebMD explains how creatinine and creatinine clearance tests are used to measure kidney function.
What Is an Ammonia Test?
Ammonia is a powerful household cleaner. It’s also a waste product made by your body. Learn why your doctor might order an ammonia test and what your results could mean.