Overall , the intervention group experienced rearrest in the field more than the control group ( 26 % [ 95 % CI , 22 % -29 % ] vs 21 % [ 95 % CI , 18 % -24 % ] , respectively ; P = .008 ) , as well as increased diuretic use and pulmonary edema on first chest x-ray , which resolved within 24 hours after admission .