<prompt> Most common catheter-related bloodstream infection isCandidaGram negative organismsCoagulase positive staphylococciCoagulase negative staphylococci  <response>: S.saprophyticus, a coagulase-negative staphylococcus, may be present on the periurethral area and can cause UTI. Ref: Ananthanarayan Paniker;s textbook of microbiology, 9th edition. Pg no.206 