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.
Wiktionary (0.00 / 0 votes) Rate this definition: wrench (Noun). A movement that twists and pulls violently. wrench (Noun). A distorting change. wrench (Noun). A sudden emotional change. wrench (Noun). A violent pull or twist; a tug. wrench (Noun). a hand tool for making rotational adjustments, such as fitting nuts and bolts, or fitting pipes. wrench (Verb). To pull or twist violently. With a surge of adrenaline, she wrenched the car door off and pulled out the injured man.