Pressors changed to levo since SVR low.
 patient is hypotensive
(ROOT (S (RB Pressors) (VP (VBN changed) (PP (TO to) (NP (NN levo))) (SBAR (IN since) (S (ADJP (NNP SVR) (JJ low))))) (. .)))
(ROOT (S (NP (NN patient)) (VP (VBZ is) (ADJP (JJ hypotensive)))))
( Pressors ( ( ( changed ( to levo ) ) ( since ( SVR low ) ) ) . ) )
( patient ( is hypotensive ) )