He was given Lasix 20 mg IV x 1 with good response.
 patient has CHF
(ROOT (S (NP (PRP He)) (VP (VBD was) (VP (VBN given) (NP (NNP Lasix)) (NP (NP (CD 20) (NN mg)) (FRAG (CD IV) (FRAG (CC x) (CD 1) (PP (IN with) (NP (JJ good) (NN response)))))))) (. .)))
(ROOT (S (NP (NN patient)) (VP (VBZ has) (NP (NN CHF)))))
( He ( ( was ( ( given Lasix ) ( ( 20 mg ) ( IV ( x ( 1 ( with ( good response ) ) ) ) ) ) ) ) . ) )
( patient ( has CHF ) )