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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.
Medical Reference
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What Is a Blood Urea Nitrogen Test?
Your doctor may order a blood urea nitrogen test, also known as BUN test, to see how well your kidneys are working.
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Low White Blood Cell Count
Find out what this test measures, what's "normal," common reasons results aren't that, what it could mean, and what you can do about it.
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What Is a Bilirubin Test?
A bilirubin test can help diagnose or monitor problems in your blood or liver. Learn why you might need the test and what your doctor can learn from the results.
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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.