Required Documents for a CDL. You will need to take the originals of all these required documents: Out-of-state CDL or New Mexico driver license. Proof of Identification number. Commercial Driver Medical Certificate and/or any medical waiver issued; Proof of identity (including date of birth),
Heart block typically causes lightheadedness, fainting, and palpitations. Depending on the severity of the heart block, this can be dangerous. For example, a third-degree heart block can worsen pre-existing conditions, such as heart failure. It can cause loss of consciousness and even sudden cardiac arrest. There can also be chest pain.
Clots may form in these narrowed arteries and block blood flow. Pieces of plaque can also break off and move to smaller blood vessels, blocking them. Either way, the blockage starves tissues of blood and oxygen, which can result in damage or tissue death.This is a common cause of heart attack and stroke.