Comparison of Conventional Chiron 348 pH/blood Gas/electrolytes Analyzer and i-STAT Portable Clinical Analyzer.
- Author:
Dong Suk CHUNG
1
;
Jong Bun KIM
;
Sie Hyun YOU
Author Information
1. Department of Anesthesiology, College of Medicine, The Catholic University of Korea, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Chiron 348 pH/blood gas/electrolytes analyzer;
electrolytes;
ionized calcium;
i-STAT portable clinical analyzer;
point-of-care devices
- MeSH:
Calcium;
Electrolytes;
Gases;
Hydrogen-Ion Concentration;
Potassium
- From:The Korean Journal of Critical Care Medicine
2000;15(1):35-40
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND: The development of so-called "Point-of-care" (POC) devices for blood or urine analysis has resulted in many systems that are widely used at home or at the bedside. We evaluated the performance of the I-STAT portable clinical analyzer for measuring blood gases (pH, PCO2, PO2) and whole blood electrolytes (sodium, potassium and ionized calcium) with reference to a conventional blood gas analyzer (Chiron 348 pH/ blood gas/electrolytes). METHODS: Thirty samples from the arterial blood were simultaneously analyzed with I-STAT system and with Chiron 348 pH/blood gas/ electrolytes analyzer. Differences between results of two methods were analyzed by paired t-test (p<0.05). RESULTS: PO2, PCO2 and Na measured with I-STAT system and Chiron 348 PH/ blood gas/ electrolytes analyzer showed no significant differences. pH, calculated HCO3, K and Ca measured by two methods showed significant difference, but observed differences would not affect clinical decisions except ionized calcium. CONCLUSIONS: This study shows that blood gas and electrolyte analysis using the I-STAT portable device is comparable with that performed by a conventional Chiron 348 pH/blood gas/ electrolytes analyzer except ionized calcium.
