Comparison of Full Blood Count Parameters Using Capillary and Venous Samples in Patients Presenting to the Emergency Department

Table 2

Distribution of blood parameters from capillary samples (C) and venous samples (V) within low, normal, and high ranges of their laboratory readings.

Blood parameter	Statistics	Laboratory range for blood parameter
White blood count (×10^9/L)		Low (<4)		Normal (4–10)		High (>10)
		𝑛=6		𝑛=230		𝑛=78
		C	V	C	V	C	V
	Mean	2.65	2.85	7.36	7.44	13.25	13.29
	SD	1.17	1.30	1.75	1.65	6.28	6.36
	Range	0.50, 3.90	0.50, 3.90	3.60, 11.70	4.00, 10.00	8.80, 62.10	10.10, 64.50
		Low (<140)		Normal (140–440)		High (>440)
Platelet (×10^9/L)		𝑛=15		𝑛=286		𝑛=13
		C	V	C	V	C	V
	Mean	119	112	264	266	459	504
	SD	24	26	63	62	67	60
	Range	72, 147	60, 138	129, 452	141, 433	396, 604	446, 630
		Low (<13)		Normal (13–17)		High (>17)
Haemoglobin (g/dL)		𝑛=127		𝑛=184		𝑛=3
		C	V	C	V	C	V
	Mean	10.1	10.7	14.0	14.5	18.5	18.4
	SD	1.9	1.9	1.2	1.0	1.2	0.8
	Range	5.0, 13.2	5.0, 12.9	11.7, 17.0	13.0, 16.9	17.1, 19.4	17.7, 19.3