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.
How long can a SCUBA diver stay at 100 meters? As long as he wants if he has enough gas to do the required decompression. But if you are asking what the no-stop time limit is, it doesn't exists since any dive to 100 meters â¦