Pathogenic organisms isolated from catheter tips included Staphylococcus aureus 28.1%, coagulase-negative Staphylococci 40.6%, Klebsiella pneumoniae 9.4%, E coli 6.3%, Pseudomonas aeroginosa 6.3%, Acinetobacter 3.1%, Proteus mirabilis 3.1% and Candida 3.1%.