Skip to main content

Table 3 BIS variable values for the standard whole-body electrode placement and time point

From: An objective measure for the assessment and management of fluid shifts in acute major burns

BIS variable at WBS

Time point

T0

T1

T2

T3

T4

T5

R0 (ohms)

498.77 (467.17–530.37)

351.94 (295.56–408.32)

366.70 (314.94–418.45)

371.18 (319.50–422.86)

371.76 (322.20–422.33)

401.01 (348.18–453.84)

Ri (ohms)

1412.47 (1225.51–1599.42)

715.75 (505.83–925.68)

715.51 (536.09894.93)

721.81 (546.31–897.31)

713.41 (541.38–885.44)

798.52 (611.02–986.02)

Rinf (ohms)

361.89 (337.57–386.20)

226.58 (183.50–269.67)

234.35 (195.19–273.52)

237.45 (198.23–276.67)

238.65 (200.24–277.06)

261.95 (220.50–303.40)

ECF (L)

20.76 (17.56–23.97)

34.77 (14.00–55.54)

32.50 (13.22–51.78)

31.93 (14.21–49.66)

31.50 (15.07–47.92)

24.84 (10.44–39.25)

ICF (L)

25.26 (21.62–28.91)

48.47 (27.74–69.21)

46.97 (27.11–66.83)

46.71 (27.15–66.27)

46.18 (27.20–65.16)

37.80 (21.38–54.23)

TBF (L)

46.03 (39.67–52.38)

83.16 (43.11–123.20)

79.48 (41.84–117.12)

78.53 (42.85–114.20)

77.65 (43.18–112.11)

62.65 (33.67–91.63)

  1. Values presented as means (confidence intervals)
  2. BIS bioimpedance spectroscopy, WBS standard whole-body electrode position, R 0 resistance at zero frequency, R i intracellular resistance, R inf resistance at infinite frequency, ECF extracellular fluid, ICF intracellular fluid, TBF total body fluid, T0 initial BIS measurement with no dressing, T1 first BIS measure with new Acticoat™ dressing, T2–T5 BIS measures taken at half hourly intervals