Following a Cystectomy, a Patient Has an Ileal Conduit Created

Following a cystectomy, a patient has an ileal conduit created. The nurse identifies the nursing diagnosis of risk for infection related to altered urinary structures. An appropriate nursing intervention for this problem is to

A) clamp the drainage bag while the patient sleeps.
B) empty the drainage appliance every 2 to 3 hours or when it is one-third full.
C) use liquid antiseptic in the appliance to decrease bacterial colonization.
D) drain the conduit every 4 hours using a sterile catheter.