Open AccessAccuracy of a Portable Blood Gas Analyzer Incorporating Optodes for Canine Blood
Author(s) -
Shiroshita Yukihito,
Tanaka Ryo,
Shibazaki Akira,
Yamane Yoshihisa
Publication year - 1999
Publication title -
journal of veterinary internal medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.356
H-Index - 103
eISSN - 1939-1676
pISSN - 0891-6640
DOI - 10.1111/j.1939-1676.1999.tb02216.x
Subject(s) - partial pressure , bicarbonate , carbon dioxide , medicine , spectrum analyzer , gas analyzer , arterial blood , oxygen , anesthesia , analytical chemistry (journal) , blood gas analysis , gas analysis , nuclear medicine , chromatography , chemistry , organic chemistry , environmental chemistry , electrical engineering , engineering
The accuracy of a portable blood gas analyzer (OPTI 1) was evaluated using canine blood and aqueous control solutions. Sixty‐four arterial blood samples were collected from 11 anesthetized dogs and were analyzed for pH, partial pressure of carbon dioxide (Pco 2 ), partial pressure of oxygen (Po 2 ), and bicarbonate concentration ([HCO 3 ‐]) values by the OPTI 1 and a conventional blood gas analyzer (GASTAT 3). The conventional analyzer was considered as a standard against which the OPTI 1 was evaluated. Comparison of OPTI 1 results with those of GASTAT 3 by linear regression analysis revealed a high degree of correlation with the GASTAT 3 ( r = .90‐.91). The mean ± SD of the differences between OPTI 1 and GASTAT 3 values was ‐0.008 ± 0.017 for pH, ‐0.88 ± 3.33 mm Hg for Pco 2 , 3.71 ± 6.98 mm Hg for Po 2 , and ‐0.34 ± 1.45 mEq/L for [HCO 3 ‐]. No statistically significant difference was found between the OPTI 1 and the GASTAT 3. Agreement between these 2 methods is within clinically acceptable ranges for pH, Pco 2 , Po 2 , and [HCO 3 ‐]. The coefficients of variation for measured pH, Pco 2 , and Po 2 values of 3 aqueous control solutions (acidic, normal, and alkalotic) analyzed by the OPTI 1 ranged from 0.047 to 0.072% for pH, 0.78 to 1.81% for Pco 2 , and 0.73 to 2.77% for Po 2 . The OPTI 1 is concluded to provide canine blood gas analysis with an accuracy that is comparable with that of conventional benchtop blood gas analyzers.