I agree with CC.
DS went through his DoDMERB in 07, no problem, no DQ.
DS(AFROTC) was selected rated in 2011, sent to WPAFB TDY for his flight physical. It is a 3 day physical. There he busted the EKG and was sent back to the cardiologist there to do an EEG.
Thankfully he cleared it, but as CC stated this truly is a 1 by 1 case. Even using our DS as an example, 4 yrs later when he thought he was in the clear because of his initial exam, realized that his dream could have come crashing down because rated physicals for at least AFROTC, are much more intense.
Remember to be commissioned DoDMERB will also do an out processing exam prior to commissioning. Just because in processing didn't catch it does not mean you are never going to address the issue again. This is why it is incredibly important to keep copies of all of your medical records.