Catheter Related sepsis

Q ) Not True about catheter related sepsis in TPN? (More Questons on  INFECTIONS) 

a) Catheter-related sepsis occurs in 3–14% of patients.

b) It  occurs both  at the time of line insertion or afterwards by migration of skin bacteria along the external catheter surface.

c)It can occur from bacteraemia from a remote source may also cause catheter infection.

d) Catheter should be removed in all cases