The anion gap blood test assesses the acid-base and electrolyte balance of the blood. It can help determine what may be causing disturbances in the blood’s pH.

A blood sodium test is ordered by your doctor for a number of reasons. Sometimes it’s needed because you may be on certain medications that affect the sodium levels in your blood. Other times it ...

The whole blood test procedure usually lasts no more than a few minutes. Afterwards, you may be asked to apply gentle pressure over a clean dressing to aid clotting and reduce swelling.

Doctors use a simple blood test to determine typical or atypical CO2 levels in the body. Learn about the CO2 blood test, and how to interpret the results, here.

But some of those tests are now clouded in confusion after the maker of the most popular blood alcohol test tubes, BD, recalled a lot of 247,000 tubes in 2019 because of concerns that a small ...

An MCV blood test measures the average size of red blood cells, which have the critical job of carrying oxygen to your organs. If they’re too big or too small, it could be a sign of trouble ...

Scientists say they have been able to grow blood vessels in a lab. Buckle your seat belt and hold onto your aorta – it's robo-vessel time. Ok not really, but close. Scientists at Yale and Duke ...

A potassium test (also known as serum potassium) is used to measure the amount of potassium in your blood. Potassium is an electrolyte important for the functions of cells.