Body composition monitor (BCM)


Overhydration is common among patients with renal failure and is closely linked to cardiovascular disease, the leading cause of death in dialysis patients. Achieving optimal fluid balance is therefore one of the central challenges in routine dialysis practice.1

When calculating excess fluid over a range of body compositions, it is important that the different ratios of intracellular to extracellular water in normally hydrated lean and adipose tissue are taken into account.1

Through our commitment to patient care, Fresenius Medical Care has introduced the first device that objectively measures overhydration in patients undergoing dialysis. The BCM is an innovative analysis system that enables fast, accurate and non-invasive fluid status monitoring. In addition, the BCM distinguishes muscle mass from pathological fluid overload thereby allowing the detection of malnutrition in patients with kidney failure.

The BCM provides the following information:

  • Hydration status
  • Urea distribution volume including precise determination of dialysis dose (Kt/V)
  • Total body water, extracellular and intracellular water
  • Lean tissue index
  • Fat tissue index
  • Body cell mass


  1. Chamney PW et al. J Clin Nutr 2007;85:80–9.