Fast Facts. Location: Joint Base San Antonio (JBSA) is situated in San Antonio, (Bexar County), the seventh largest city and known as Military City USA.. Encompassing JBSA are Fort Sam Houston, Lackland Air Force Base and Randolph Air Force Base, three separate installations.
This list is incomplete and various other drugs or substances may cause your symptoms (see Irregular heartbeat). Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments. 1  Aldazine. 2  Amphetamine Sulfate. 3  Anatensol.
What could cause an irregular heart rate? An irregular heart rate can be caused by a panic attack or by strong emotions, such as fear, stress or anxiety, according to WebMD. An irregular heartbeat can also be caused by intense exercise.