RESULTS	A point-of-care test reduced median ED length of stay among all study patients by 22 minutes ( median 350 minutes [ interquartile range 206 to 1,002 minutes ] with point-of-care test versus median 372 minutes [ interquartile range 217 to 1,150 minutes ] with central laboratory testing ; median difference 22 minutes ; 95 % confidence interval [ CI ] 4 to 40 minutes ) .\