tokens: Hypotension induced by ATP was accompanied by significant decreases in mean pulmonary arterial pressure ( p less than 0 . 001 ) , central venous pressure ( p less than 0 . 001 ) , left ventricular end - diastolic pressure ( p less than 0 . 001 ) , total peripheral resistance ( p less than 0 . 001 ) , rate pressure product ( p less than 0 . 001 ) , total body oxygen consumption ( p less than 0 . 05 ) , and heart rate ( p less than 0 . 001 ) ; all these variables returned normal within 30 min after ATP was stopped .