A renal biopsy at this time showed signs of rejection and he received a three day pulse of steroids and subsequently did well.
 The patient is immunocompromised.
(ROOT (S (S (NP (NP (DT A) (JJ renal) (NN biopsy)) (PP (IN at) (NP (DT this) (NN time)))) (VP (VBD showed) (NP (NP (NNS signs)) (PP (IN of) (NP (NN rejection)))))) (CC and) (S (S (NP (PRP he)) (VP (VBD received) (NP (NP (DT a) (CD three) (NN day) (NN pulse)) (PP (IN of) (NP (NNS steroids)))))) (CC and) (S (ADVP (RB subsequently)) (VP (VBD did) (ADVP (RB well))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ is) (VP (VBN immunocompromised))) (. .)))
( ( ( ( ( ( A ( renal biopsy ) ) ( at ( this time ) ) ) ( showed ( signs ( of rejection ) ) ) ) and ) ( ( ( he ( received ( ( a ( three ( day pulse ) ) ) ( of steroids ) ) ) ) and ) ( subsequently ( did well ) ) ) ) . )
( ( The patient ) ( ( is immunocompromised ) . ) )