BNP was elevated at 7882.
 BNP was above normal 
(ROOT (S (NP (NN BNP)) (VP (VBD was) (VP (JJ elevated) (PP (IN at) (NP (CD 7882))))) (. .)))
(ROOT (S (NP (NN BNP)) (VP (VBD was) (ADJP (IN above) (JJ normal)))))
( BNP ( ( was ( elevated ( at 7882 ) ) ) . ) )
( BNP ( was ( above normal ) ) )