TABLE 2.
Differences between arterial and venous values in the PHS + VBCT and DABS + VBCT groups.
| PHS + VBCT (N = 500) | DABS + VBCT (N = 400) | p (For difference) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| PHS | VBCT | Difference | RD | DABS | VBCT | Difference | RD | ||
| K+ (mmol/L) | 3.79 ± 0.75 | 4.11 ± 0.72 | −0.32 ± 0.40* | 9.58 ± 7.00 | 3.89 ± 0.70 | 4.09 ± 0.71 | −0.20 ± 0.28* | 6.27 ± 5.20 | <0.001 |
| Na+ (mmol/L) | 135.19 ± 5.02 | 138.09 ± 4.87 | −2.90 ± 2.71* | 2.38 ± 1.58 | 136.80 ± 5.69 | 137.98 ± 5.13 | −1.19 ± 2.35* | 1.49 ± 1.25 | <0.001 |
| Cl− (mmol/L) | 108.74 ± 7.42 | 101.15 ± 6.42 | 7.60 ± 5.06* | 7.75 ± 5.35 | 107.62 ± 8.38 | 102.28 ± 6.45 | 5.34 ± 6.12* | 6.35 ± 4.98 | <0.001 |
| Hb (g/L) | 113.93 ± 31.10 | 116.14 ± 31.04 | −2.21 ± 7.99* | 4.80 ± 6.77 | 119.62 ± 32.28 | 118.73 ± 30.82 | 0.90 ± 10.00 | 4.9 0 ± 7.90 | <0.001 |
| HCT (%) | 35.12 ± 9.36 | 36.39 ± 9.59 | −1.27 ± 2.86* | 6.41 ± 6.85 | 36.84 ± 9.72 | 36.18 ± 9.22 | 0.66 ± 3.23* | 5.72 ± 8.00 | <0.001 |
Note: RD = |ABG result ‐ VBCT result |/ VBCT result × 100%.
Abbreviations: ABG, arterial blood gas; DABS, disposable arterial blood syringe; PHS, pre‐heparinized syringe; RD, relative difference; VBCT, venous blood collection tube.
*
p < 0.05 between ABG and VBCT values in each group.