How frequently do you obtain 24 hour urine stone risk profiles in your patients with kidney stone disease who pass less than one stone per year?  

When I do 24h urine collections in patients, I repeat the collection in order to see if the goal of therapy was achieved. Whether that was fluids, dietary changes, or medications, I usually want to see if we were successful. After that, I'm less interested in repeating the study especially if the st...