This highlight reports on recent efforts to develop and promote health status measurement instruments for use in dialysis units that treat end-stage renal disease (ESRD) patients, most of whom are covered for all medical services under Medicare. Readers interested in a more detailed discussion of instruments, including associated data collection and data processing aspects, should consult a recently published account, with its extensive references, of four instruments currently being used in dialysis units ( Rettig et al, 1997). Those interested in early reports of the clinical utility of such instruments should consult the following references ( Kurtin et al, 1992; Meyer et al., 1994; and DeOreo, 1997).