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.
If this test shows that your CK levels are high, you may have muscle or heart damage. CK is made up of three enzyme forms. These are CK-MB, CK-MM, and CK-BB. CK-MB is the substance that rises if your heart muscle is damaged. CK-MM rises with other muscle damage. CK-BB is found mostly in the brain.