Roche Diagnostics
Instructions for Use · Version 13.0 137
cobas b 123 POC system 6 Measurement
Table of contents
Measurement 6
This chapter describes how to collect and handle samples, perform measurements
and configure measurement settings.
In this chapter
Chapter
6
Preanalytics ........................................................................................................................ 139
Sample collection ........................................................................................................ 139
Whole blood .......................................................................................................... 139
Anticoagulants ...................................................................................................... 140
Sample collection, specifically for tHb, SO
2
and Hct measurements ............ 140
Sample collection, specifically for glucose and lactate measurements .......... 140
Sample collection, specifically for bilirubin measurements............................ 141
Sample collection, specifically for dialysis solution measurement................. 141
Sample collection containers ..................................................................................... 141
Syringes .................................................................................................................. 142
Capillary tubes....................................................................................................... 142
Roche MICROSAMPLER PROTECT................................................................ 142
Sample collection container accessories ............................................................ 142
Sample handling.......................................................................................................... 143
Whole blood .......................................................................................................... 143
Dialysis solution .......................................................................................................... 144
Interferences....................................................................................................................... 145
Substances without effect on BG, pH, ISE, Glu, Lac and Hct ............................... 145
Substances without effect on tHb, SO
2
, Hb derivatives and bilirubin ................. 147
Substances with effect on BG, pH, ISE, Glu, Lac and Hct..................................... 148
Substances with effect on tHb, SO
2
, bilirubin and Hb derivatives....................... 149
Limitations of clinical analysis......................................................................................... 152
General information ................................................................................................... 152
Plausibility check for neonatal bilirubin measurements........................................ 152
Configuring measurement input values......................................................................... 154
Configuring the measurement results screen................................................................ 156
Configuring the parameter selection field..................................................................... 157
Creating user-defined parameter groups................................................................. 158
Performing a measurement.............................................................................................. 160
Measurement modes......................................................................................................... 169