Table 3.
BIS variable values for the standard whole-body electrode placement and time point
| 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) |
Values presented as means (confidence intervals)
BIS bioimpedance spectroscopy, WBS standard whole-body electrode position, R0 resistance at zero frequency, Ri intracellular resistance, Rinf 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