Roche cobas b 123 - Page 214

Roche Diagnostics
214 Instructions for Use · Version 13.0
7 Quality control cobas b 123 POC system
Multirules
Set 4 Rule 1, Rule 2, Rule 4, Rule 5 and Rule 6.
Figure 7-45 Multirules set 4
A (Rule 1 = OK) AND ((Rule 2 = OK) OR (Rule
4 = OK) OR (Rule 5 = OK) OR (Rule 6 =
OK)) = OK
B (Rule 1 = NOK) AND ((Rule 2 = OK) OR
(Rule 4 = OK) OR (Rule 5 = OK) OR (Rule 6
= NOK)) = NOK
OK
OUT OF
CONTROL 6
+3σ
+1σ
–1σ
X
M
–3σ
+3σ
+1σ
–1σ
X
M
–3σ