Table 2. Number and causes of alarm messages.

Patient	Type of alarm message					Alarms per day
	Reduced flow	Reduced motor speed	Excess current	Pump stopped	Total
1	1,759 (92.14%)	2 (0.10%)	140 (7.33%)	8* (0.42%)	1,909	4.44
2	1,482 (96.23%)	4 (0.26%)	53 (3.44%)	1 (0.06%)	1,540	3.91
3	27 (44.26%)	2 (3.28%)	31 (50.82%)	1 (1.64%)	61	0.133
4	13 (8.23%)	14 (8.86%)	129 (81.65%)	2 (1.27%)	158	0.486
5	0	9 (47.37%)	9 (47.37%)	1 (5.26%)	19	0.087
6	15 (93.75%)	1 (6.25%)	0	0	16	0.0686
7	59 (67.05%)	2 (2.27%)	27 (30.68%)	0	88	0.727
8	52 (100%)	0	0	0	52	0.481
9	75 (79.79%)	19 (20.21%)	0	0	94	1.28
10	28 (96.55%)	0	1 (3.45%)	0	29	0.557
11	2,244 (99.73%)	6 (0.27%)	0	0	2,250	77.59
Total	5,754 (92.57%)	59 (0.95%)	390 (6.27%)	13 (0.21%)	6,216

*, all 8 of these pump stops were controller-related not pump-related.