- Providing antibiotic coverage against all organisms which grow from a urine culture that is obtained from the original indwelling bladder catheter. Although this source of urine culture is a sensitive method for identifying the organisms that are present in the urine, it suffers from poor specificity because it may yield the growth of some organisms that could have colonized the catheter (and, therefore, grown in a culture of urine obtained through that original catheter) but did not contribute to UTI. This issue is particularly problematic in patients with spinal cord injury because urine cultures in almost half of the cases of UTI in this population yield multiple bacteria. Therefore, we propose that collection of a urine culture while inserting the new bladder catheter would yield growth of only organisms that truly contribute to UTI and, therefore, obviate the need to administer unnecessary antibiotics to cover additional organisms that would grow only from urine cultures obtained through the original catheter.