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Journals / Turkish journal of emergency medicine (Online) / 2015 / Cilt: 15 - Sayı: 1

Effectiveness of the Stewart Method in the Evaluationof Blood Gas Parameters

Correspondence: Umit Kaldirim, MD. General Tevfik Saglam Cad., Gulhane Askeri Tip Akademisi

Kadir OZTURK
Fatih BULUCU
Umit KALDIRIM
Yusuf Emrah EYI
Mustafa GEZER
Selim KILIC
Pages
3–7
Publication Date
2022-11-05
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The Stewart method may be more effective in the evaluation of complex metabolic acidosis

📌 3 Key Takeaways

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Objective & Hypothesis:ObjectivesIn 1981, Peter A.
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Key Findings & Data:In this study we compared the HCO levels and Anion Gap (AG) calculated using the classic method and the Stewart method.MethodsFour hundred nine (409) arterial blood gases of 90 patients were collected retrospectively.
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Conclusion & Impact:The Stewart method may be more effective in the evaluation of complex metabolic acidosis
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

ObjectivesIn 1981, Peter A. Stewart published a paper describing his concept for employing Strong Ion Difference. In this study we compared the HCO levels and Anion Gap (AG) calculated using the classic method and the Stewart method.MethodsFour hundred nine (409) arterial blood gases of 90 patients were collected retrospectively. Some were obtained from the same patients in different times and conditions. All blood samples were evaluated using the same device (ABL 800 Blood Gas Analyzer). HCO3 level and AG were calculated using the Stewart method via the website AcidBase.org. HCO3 levels, AG and strong ion difference (SID) were calculated using the Stewart method, incorporating the parameters of age, serum lactate, glucose, sodium, and pH, etc.ResultsAccording to classic method, the levels of HCO and AG were 22.4±7.2 mEq/L and 20.1±4.1 mEq/L respectively. According to Stewart method, the levels of HCO and AG were 22.6±7.4 and 19.9±4.5 mEq/Lrespectively.ConclusionsThere was strong correlation between the classic method and the Stewart method for calculating HCO and AG. The Stewart method may be more effective in the evaluation of complex metabolic acidosis

Özet

ObjectivesIn 1981, Peter A. Stewart published a paper describing his concept for employing Strong Ion Difference. In this study we compared the HCO levels and Anion Gap (AG) calculated using the classic method and the Stewart method.MethodsFour hundred nine (409) arterial blood gases of 90 patients were collected retrospectively. Some were obtained from the same patients in different times and conditions. All blood samples were evaluated using the same device (ABL 800 Blood Gas Analyzer). HCO3 level and AG were calculated using the Stewart method via the website AcidBase.org. HCO3 levels, AG and strong ion difference (SID) were calculated using the Stewart method, incorporating the parameters of age, serum lactate, glucose, sodium, and pH, etc.ResultsAccording to classic method, the levels of HCO and AG were 22.4±7.2 mEq/L and 20.1±4.1 mEq/L respectively. According to Stewart method, the levels of HCO and AG were 22.6±7.4 and 19.9±4.5 mEq/Lrespectively.ConclusionsThere was strong correlation between the classic method and the Stewart method for calculating HCO and AG. The Stewart method may be more effective in the evaluation of complex metabolic acidosis

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Cite This Article

OZTURK, K., BULUCU, F., KALDIRIM, U., EYI, Y. E., GEZER, M., KILIC, S. (2022). Effectiveness of the Stewart Method in the Evaluationof Blood Gas Parameters. Turkish journal of emergency medicine (Online), Cilt: 15 - Sayı: 1, 3–7. https://ajindex.com/articles/605306

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