Table 8.

Measures of central tendency and spread every 24 h for total Ca/ionized Ca ratio and magnesium while on postdilution continuous venovenous hemodiafiltration with regional citrate anticoagulation (CVVHDF-RCA) Shock protocol

VariableNMedianIQRMinimumMaximum
Max tCa/iCa
 First 24 h312.021.85–2.111.642.35
 25–48 h172.0281.84–2.101.642.36
 49–72 h81.9311.80–2.001.632.03
 73–96 h81.9381.79–2.141.682.21
Magnesium (mg/dl)
 Baseline302.32.1–2.51.33.5
 24 h2721.9–2.21.72.4
 48 h1721.8–2.11.62.8
 72 h81.851.8–1.91.72.1
 96 h71.91.7–2.01.62.1
  • IQR, interquartile range; tCa, total Ca; iCa, ionized Ca.