Roche Diagnostics
Instructions for Use · Version 10.0 97
9180 Electrolyte Analyzer 7 Measurement
Table of contents
Measurement 7
In this chapter
Chapter
7
Preanalytics ...........................................................................................................................99
Sample collection ...........................................................................................................99
Safety..........................................................................................................................99
Sample requirements...............................................................................................99
Acceptable anticoagulants ................................................................................... 100
Sample collection containers ..................................................................................... 100
Syringes .................................................................................................................. 100
Capillary tubes....................................................................................................... 101
Sample handling.......................................................................................................... 101
Whole blood .......................................................................................................... 101
Serum ..................................................................................................................... 102
Plasma .................................................................................................................... 102
Aqueous solutions................................................................................................. 102
Interference ........................................................................................................................ 103
Substances without effect........................................................................................... 103
Plasma samples...................................................................................................... 103
Whole blood samples ........................................................................................... 104
Substances with effect................................................................................................. 105
Effect of the substances (plasma samples)......................................................... 105
Effect of the substances (whole blood samples)................................................ 106
Limitations of clinical analysis......................................................................................... 107
General ......................................................................................................................... 107
Electrolytes................................................................................................................... 107
Measuring procedure........................................................................................................ 108
Sample measurement.................................................................................................. 108
Direct ISE............................................................................................................... 110
Urine samples........................................................................................................ 111
Normal ranges (reference values).................................................................................... 112