Although not part of the original plan, the Joint Chiefs of Staff also created specified commands that had broad and continuing missions but were composed of forces from only one service. Examples include the U.S. Naval Forces, Eastern Atlantic and Mediterranean and the U.S. Air Force's Strategic Air Command.
Longer the test higher will be the sustainability and stronger will be the heart. An estimated time calculated to know how long a stress tests take is around 30 minutes without stoppage. This is considered as a normal time of a stress test if a person is strong enough to sustain the external stress and regular exercise.
They have the results from most tests in 24 hrs. Things like cultures take several days to grow. Some tests, like HCG, have a lab turn around of about 4-6 hrs. How long it takes them to review and respond is the variable, time consuming part. My OB with my first sucked when it came to talking about results! I asked at appointments and she would say normal, but would never give me the actual results.