I agree with paracetamol and epinephrine suggested. Additionally, pulmonary hemorrhage may be evaluated in some cases as a high degree of congestive heart insufficiency. Consider fluid restriction, furasemid and probably inotropes. This may help PDA to close as well. To stop bleeding sometimes we have to rise mean airway pressure (of course carefully in such a tiny baby). If the clotting process is disturbed we use plasma because it works immediately. Wish you success.