Patient serum/plasma sample resistivity for electrolyte result verification
US9228975B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 24, 2012 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Jan 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/49
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Verification of patient sample electrolyte results using a separate quantitative measurement of sample resistivity. Sample resistivity may be used to measure small differences in resistivity of one sample to the next, and in comparison to a standard solution, in order to verify the results of sample electrolyte measurements being measured at the same time by, for example, individual ion selective electrodes (ISE) in a clinical analyzer. Providing a separate or secondary quantitative means for verification of the measured results of sample electrolytes using sample resistivity solves the problem of electrolyte result variability in sample electrolyte measurements. The process may compare a measured sample resistivity to an expected resistivity value as a verification of the accuracy of individual electrolyte results. Suspect samples—e.g., where the electrolyte resistivity results do not fit the expected resistivity—may be flagged. This separate verification step provides added confidence in the measured electrolyte results and can identify when problems occur or interferences are present in real time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.