Overview. A comprehensive metabolic panel (CMP -14) includes 14 different blood tests that provide information on the levels of glucose, calcium, proteins, and electrolytes in one’s body, as well as information on liver and kidney functioning.The test is often ordered as a part of a yearly health check.verview. A comprehensive metabolic panel (CMP -14) includes 14 different blood tests that provide information on the levels of glucose, calcium, proteins, and electrolytes in one’s body, as well as information on liver and kidney functioning.