Platelet trends in patients after central line placement. (A) Patient 1 (multiple myeloma). (B) Patient 2 (AL amyloidosis). (C) Patient 3 (AL amyloidosis). (D) Patient 4 (AL amyloidosis). (E) Patient 5 (AL amyloidosis). Ab, antibody; DVT, deep vein thrombosis; LMWH, low-molecular-weight heparin; SCC, stem cell collection.