A differential blood test enables a doctor to determine how many white blood cells are in the body. There are five types of white blood cell, and the test also shows how many of each type are present.

When skin is cut or damaged, tiny cell fragments circulating in the blood, called platelets, arrive at the injury and spread out to stop the blood from leaking out. Once enough layers of platelets ...

LAKE ZURICH, Ill. & WORCESTER, Mass.--(BUSINESS WIRE)--A $30 test that takes fewer than 30 minutes to perform can prevent potentially deadly transfusions of bacterial contamination in platelets, ...