This a.m. the patient was tachypneic with O2 saturations 92% to 94% on room air with respiratory rate in the 40s.
 The patient has a history of pulmonary embolism 
(ROOT (S (NP (DT This) (NN a.m.)) (NP (DT the) (NN patient)) (VP (VBD was) (ADJP (JJ tachypneic)) (PP (IN with) (NP (NP (NP (CD O2) (NNS saturations)) (NP (QP (CD 92) (NN %) (TO to) (CD 94) (NN %))) (PP (IN on) (NP (NN room) (NN air)))) (PP (IN with) (NP (NP (JJ respiratory) (NN rate)) (PP (IN in) (NP (DT the) (NNS 40s)))))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ has) (NP (NP (DT a) (NN history)) (PP (IN of) (NP (JJ pulmonary) (NN embolism)))))))
( ( This a.m. ) ( ( the patient ) ( ( ( was tachypneic ) ( with ( ( ( ( O2 saturations ) ( 92 ( ( ( % to ) 94 ) % ) ) ) ( on ( room air ) ) ) ( with ( ( respiratory rate ) ( in ( the 40s ) ) ) ) ) ) ) . ) ) )
( ( The patient ) ( has ( ( a history ) ( of ( pulmonary embolism ) ) ) ) )