Table 2.

Descriptive statistics and paired t test of investigated parameters

Parameter	Arterial blood by RAPID POINT 500		Arterial plasma by AU5800		Venous plasma by AU5800		P a	P b
	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD	Range
Sodium (mmol/L)	141.10 ± 7.65	122.40‐171.90	146.42 ± 8.31	127.10‐174.20	141.71 ± 7.39	125.10‐165.90	<.001*	<.001*
Potassium (mmol/L)	3.86 ± 0.61	2.50‐5.93	3.94 ± 0.63	2.65‐6.14	4.01 ± 0.62	2.67‐6.33	<.001*	<.001*
Chloride (mmol/L)	105.08 ± 7.19	87.00‐135.00	106.58 ± 7.58	89.80‐137.90	105.15 ± 7.34	86.50‐137.10	.517	<.001*
Glucose (mmol/L)	7.75 ± 3.09	2.80‐22.70	7.93 ± 3.21	3.13‐22.92	8.09 ± 3.18	3.36‐22.41	<.001*	<.001*

^aArterial blood by RAPID POINT 500 vs Arterial plasma by AU5800.

^bArterial blood by RAPID POINT 500 vs Venous plasma by AU5800.

^* P < .05.