Flushing

1. The standard will be NOT to flush nephrostomy tubes

2. Flushing will be recommended in cases of thick urine (purulence) or proven stone disease that causes early clogging/dysfunction

Exchange

1. Routine exchanges will be performed every 3 months. For pregnancy, routine exchange every 2 months.

2. Exchanges may be recommended more frequently in cases where stone disease causes earlier dysfunction

3. Certain infections will be the reason for early exchange to include:

   • Fungal (candida)

   • Pseudomonas

   • E. coli