A CK-MB test may be used as a follow-up test to an elevated CK in order to determine whether the increase is due to heart damage or skeletal muscle damage.
Scuba organizations say recreational divers shouldn't go below about 130 feet, but one Egyptian diver recently ventured a bit deeper -- going more than 1,000 feet below the ocean surface and setting a world record in the process.
A Navy diver submerged 2,000 feet, setting a record using the new Atmospheric Diving System (ADS) suit, off the coast of La Jolla, Calif., Aug. 1.. 609.6 m. SCUBA diving is defined as diving underwater with a self-contained Breathing Apparatus.