then blood work is for you . 
(ROOT (S (ADVP (RB then)) (NP (NN blood) (NN work)) (VP (VBZ is) (PP (IN for) (NP (PRP you)))) (. .)))
(ROOT (S (ADVP (RB )) (NP (NN ) (NN )) (VP (VBZ ) (PP (IN ) (NP (PRP )))) (. )))