In ED, tachycardic, NGT placed and NG lavage was negative.
 the patient has a lower GI bleed
(ROOT (S (PP (IN In) (NP (NNP ED))) (, ,) (JJ tachycardic) (, ,) (S (NP (NNP NGT)) (VP (VBD placed))) (CC and) (S (NP (NNP NG) (NN lavage)) (VP (VBD was) (ADJP (JJ negative)))) (. .)))
(ROOT (S (NP (DT the) (NN patient)) (VP (VBZ has) (NP (NP (DT a) (JJR lower) (NN GI)) (VB bleed)))))
( ( In ED ) ( , ( tachycardic ( , ( ( ( ( NGT placed ) and ) ( ( NG lavage ) ( was negative ) ) ) . ) ) ) ) )
( ( the patient ) ( has ( ( a ( lower GI ) ) bleed ) ) )