The breath ammonia measurement of the hemodialysis with a QCM-NH3 sensor
| Autor: | Norimichi Kawashima, Kiichi Tsuji, Hideo Takemura, Tetuzou Agishi, Toshio Satou, Hitoshi Ishida, Seimei Shiratori, Yasuhiro Kosaki |
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| Rok vydání: | 2008 |
| Předmět: |
Male
inorganic chemicals medicine.medical_treatment Biomedical Engineering Analytical chemistry Biosensing Techniques Blood Urea Nitrogen Biomaterials Ammonia chemistry.chemical_compound Renal Dialysis medicine Humans Expiration Ammonia Measurement Blood urea nitrogen Dialysis Aged Aged 80 and over Creatinine General Medicine Quartz crystal microbalance Middle Aged Breath Tests chemistry Female Gases Hemodialysis |
| Zdroj: | Bio-Medical Materials and Engineering. 18:99-106 |
| ISSN: | 0959-2989 |
| DOI: | 10.3233/bme-2008-0513 |
| Popis: | Recently, expired gases are analyzed non-invasively for monitoring the substances in the blood. Breath ammonia has been shown to correlate with BUN (blood urea nitrogen) and Cr (creatinine), both of which are indicators of solute removal in hemodialysis. In this study, breath ammonia concentration was continuously measured using a crystal oscillator QCM (quartz crystal microbalance) during the expiration of patients undergoing dialysis treatment. The results show that NH3 (ammonia) decreased gradually as the treatment proceeded. A strong correlation was observed between changes in the frequency of the QCM gas sensor and both the pre-dialysis BUN level (r=0.71, p |
| Databáze: | OpenAIRE |
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