The JCAHO has standards pertaining to patient restraint use. A checklist has been developed that is to be used each time a restraint is used. The checklist contains five items, all of which should be checked. Table shows data collected for 25 months that indicate the number of patients restrained and the number of items that were not checked prior to restraint use.
(a) Is the process stable?
(b) If not, assuming identifiable remedial actions with the special causes, revise the centerline and control limits.
(c) What is your expectation from this process?
| Sample |
Number Restrained |
Number of items not checked |
Sample |
Number Restrained |
Number of items not checked |
| 1 |
100 |
4 |
14 |
40 |
3 |
| 2 |
50 |
3 |
15 |
80 |
2 |
| 3 |
80 |
8 |
16 |
80 |
4 |
| 4 |
60 |
4 |
17 |
120 |
6 |
| 5 |
120 |
14 |
18 |
100 |
8 |
| 6 |
100 |
8 |
19 |
120 |
10 |
| 7 |
80 |
4 |
20 |
80 |
5 |
| 8 |
100 |
5 |
21 |
60 |
8 |
| 9 |
60 |
2 |
22 |
100 |
4 |
| 10 |
80 |
12 |
23 |
100 |
5 |
| 11 |
100 |
7 |
24 |
80 |
4 |
| 12 |
120 |
5 |
25 |
120 |
5 |
| 13 |
60 |
15 |
|
|
|