Renal salt wasting as a cause of hyponatremia

Any one ever see this?

Full text available here.

I hope to get back to this at some time but for now here are some comments from twitter:

@kidney_boy Interesting paper. Should we routinely check FeUrea & serum urate in nonedematous hypoNa pts?
— jbdoc (@jbdoc) March 3, 2013

and

@kidney_boy also, bedside u/s has improved vol status determination in my practice
— jbdoc (@jbdoc) March 3, 2013