These 10 animal facts will amaze you. A cavity wall consists of two separate walls that have been built closely together with a space in between them. Each of these walls can be constructed of a different type of masonry, such as brick or concrete, or from other materials.
The CPK blood test is a laboratory test that measures creatine phosphokinase (CPK), which is one of the enzymes found in the brain, heart, and skeletal muscles. This is a useful test for helping doctors to diagnose problems such as muscle damage, heart attack, and related conditions. slide 1 of 4.
Creatine kinase - Laboratory testing. 1  CK is often determined routinely in a medical laboratory. 2  Creatine kinase in the blood may be high in health and disease. 3  Furthermore, the isoenzyme determination has been used extensively as an indication for myocardial damage in heart attacks. 4  Reference ranges for blood tests.