- Prognosis for recovery of function in acute renal failure. Value of the renal image obtained using iodohippurate sodium I 131. Harwood, T.H., Hiesterman, D.R., Robinson, R.G., Cross, D.E., Whittier, F.C., Diederich, D.A., Grantham, J.J. Arch. Intern. Med. (1976)