The mailbox is a potential threat to the health of the Information store and has been quarantined. There are several types of events for which the Exchange store tags a mailbox as a potential threat: If a thread doing work for that mailbox fails.
Creatine Kinase (CK) Test. This blood test measures an enzyme called creatine kinase (CK) or creatine phosphokinase (CPK). Enzymes are chemicals that help the cells of your body work. Muscle cells make the creatine kinase enzyme. When muscle cells are injured or diseased, enzymes leak out of the cells and enter the bloodstream.
The CK test may be done to check for muscle injury. It can give an idea of how bad the injury is, when it happened, and whether it is healing. Other blood tests may be needed to find which area has been injured. The test may be done to: 1  Diagnose the cause of chest pain, such as heart muscle damage from a heart attack.