Paroxysmal atrial tachycardia may be caused by several different things. The fast rate may be triggered by a premature atrial beat that sends an impulse along an abnormal electrical path to the ventricles.Other causes stem from anxiety, stimulants, overactive thyroid, and in some women, the onset of menstruation.aroxysmal atrial tachycardia may be caused by several different things. The fast rate may be triggered by a premature atrial beat that sends an impulse along an abnormal electrical path to the ventricles.
Definition of mooch for English Language Learners. : to ask for and get things from other people without paying for them or doing anything for them.
Definition of mooch. mooch. noun. a person who requests and then takes things without ever returning the favor. Josh is such a mooch. She's been mooching cigarettes off me for years. She's such a mooch. Last edited on Dec 20 2011. Submitted by Courtney H. from Damascus, MD, USA on Jan 20 2003.