Critical Care Research and Practice / 2019 / Article / Tab 1

Research Article

Determination of Electrolytes in Critical Illness Patients at Different pH Ranges: Whom Shall We Believe, the Blood Gas Analysis or the Laboratory Autoanalyzer?

Table 1

Differences in measurements of sodium and potassium in the ABG and AA at different pH values.

Sodium (Na+) (AA-ABG) (mmol/l)Δ Na+ (AA-ABG) (mmol/l)Potassium (K+) (AA-ABG) (mmol/l)Δ K+ (AA-ABG) (mmol/l)

pH 7.20–7.29 (n = 19)136 ± 4.62137 ± 6.473.07 ± 4.184.65 ± 0.474.52 ± 0.460.19 ± 0.11
pH 7.30–7.39 (n = 41)140 ± 5.15140 ± 6.371.90 ± 1.894.40 ± 0.624.32 ± 0.550.14 ± 0.11
pH 7.40–7.49 (n = 40)141 ± 4.93140 ± 4.622.29 ± 1.564.31 ± 0.394.26 ± 0.390.12 ± 0.11
pH 7.20–7.49 (n = 100)140 ± 5.20140 ± 5.802.24 ± 2.274.40 ± 0.554.33 ± 0.480.14 ± 0.11

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