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Table 1 The point-of-care results for the analyses of IO1 (initial intraosseous sample), IO2 (second intraosseous sample after 2 ml of waste blood), arterial blood, and venous blood

From: Intraosseous blood samples for point-of-care analysis: agreement between intraosseous and arterial analyses

  IO1 IO2 Artery Vein
Na (mmol/l) 132 (123–137) n = 29 131.5 (125–138) n = 30 138 (131–140) 138 (132–142)
K (mmol/l) 5.8 (4.0–7.7) n = 27 6.9 (4.5–8.8) n = 26 3.7 (3.5–4.2) 3.7 (3.3–4.2)
iCa (mmol/l) 1.12 (0.95–1.2) n = 29 1.07 (0.91–1.24) n = 30 1.21 (1.13–1.26) 1.23 (1.18–1.3)
pH 7.420 (7.363–7.614) n = 29 7.433 (7.379–7.679) n = 30 7.408 (7.356–7.789) 7.377 (7.298–7.463)
BE (mmol/l) 1.0 (−3.0–5.0) n = 29 1.0 (−3.0–6.0) n = 30 −1.0 (−6.0–9.0) −1.0 (−5.0–4.0)
HCO3 (mmol/l) 25.1 (20.9–29.3) n = 29 25.0 (20.7–30.6) n = 30 22.6 (18.0–27.8) 24.4 (20.8–28.7)
pO2 (kPa) 7.35 (4.7–13.4) n = 28 7.55 (4.1–13.7) n = 30 12.35 (9.5–15.5) n = 30 4.3 (2.6–10.5)
pCO2 (kPa) 5.12 (2.97–6.16) n = 29 4.96 (2.44–6.16) n = 30 4.82 (2.25–5.36) 5.55 (4.07–7.29)
Hb (g/l) 153 (68–204) n = 28 139.5 (92–190) n = 30 153 (116–228) 150 (119–241) n = 30
Hct (%) 45 (20–60) n = 28 41 (27–56) n = 30 45 (34–67) 44 (35–71)
Gluc (mmol/l) 5.5 (4.4–7.0) n = 27 5.5 (4.6–6.8) n = 29 5.5 (4.4–7.0) 5.4 (3.8–6.6)
Lact (mmol/l) 1.03 (0.58–2.42) n = 26 1.04 (0.68–2.11) n = 26 1.15 (0.56–2.0) n = 30 1.44 (0.74–2.58)
  1. Data are presented as median (range). The number of results is indicated only if it differed from 31. Potassium values over 9.0 mmol/l were excluded from the analysis as outliers (the upper limit of measurement for the used method, IO1 n = 2, IO2 n = 4)