Comparison of arterial and capillary blood gas values in poisoning department assessment

2009 ◽  
Vol 28 (10) ◽  
pp. 665-670 ◽  
Author(s):  
Nastaran Eizadi-Mood ◽  
Sam Alfred ◽  
Ahmad Yaraghi ◽  
Chanh Huynh ◽  
Ali Shayesteh Moghadam

The aim of this study was to compare simultaneously obtained arterial and capillary blood gas (CBG) values in comatose-poisoned patients presented with stable vital signs. Forty-five adult patients with a diagnosis of coma because of poisoning and stable vital signs were included in this prospective study. With respect to pH, the arterial blood gas (ABG) and CBG values correlated satisfactorily (r2 = .91) and had an acceptable limit of agreements (LOAs; —0.04 to 0.06). With respect to base excess (BE), the ABG and CBG values correlated well (r2 = .85), but their 95% LOAs seem too wide to allow substitution (—4.4 to 2.7). PCO2 (r2 = .61), HCO3 (r2 = .71) and PO2 (r2 = .53) correlated less reliably. A capillary PCO2 of 51.7 mm Hg had a sensitivity of 100% and a specificity of 95.12% for detecting hypercarbia (area under the curve, 0.99; 95% Confidence Interval, 0.90-0.99; p < .0001). In conclusion, CBG analysis for pH may be a reliable substitute for ABG analysis in the initial evaluation of patients presenting with coma and stable vital signs to the poisoning emergency department (PED). Subsequent ABG may be required in patients with capillary PCO2 > 51.7 mm Hg.

Arterial blood gas (ABGs) analysis forms the cornerstone of emergency respiratory investigation. In many situations values obtained dictate management strategy and facilitate decision-making. It is an uncomfortable procedure for the patients and if repeated ABGs are required, consider whether less invasive measures, such as respiratory rate, pulse oximetry or capillary blood gas measurements could be used....


2020 ◽  
pp. 71-76
Author(s):  
Pat Croskerry

In this case, a 43-year-old male presents to the emergency department complaining of blurred vision during the past few days. He appears apprehensive. His eye examination is completely normal. On the basis of his increased respiratory rate and apprehension, a diagnosis of anxiety state is made, and he is discharged home. He returns the next day with continuing symptoms. On this occasion, an arterial blood gas is ordered, which eventually reveals his correct diagnosis.


2020 ◽  
Vol 97 ◽  
pp. 233-235 ◽  
Author(s):  
Gianni Turcato ◽  
Luca Panebianco ◽  
Arian Zaboli ◽  
Christoph Scheurer ◽  
Dietmar Ausserhofer ◽  
...  

2013 ◽  
Vol 3 (2) ◽  
pp. 29-33
Author(s):  
Ertan Bakoğlu ◽  
Ali Sedat Kebapçıoğlu ◽  
Ahmet Ak ◽  
Abdullah Sadık Girişgin ◽  
İsmail Zararsız

2019 ◽  
Author(s):  
Xiexiong Zhao ◽  
Joel Dominic Swai ◽  
Huiling Chen ◽  
Huiting Tang ◽  
Junwen Wang ◽  
...  

Abstract Background Arterial blood gas (ABG) analysis is vital in the emergency department. However, the accuracy and stability of some indicators in ABG analysis are debatable compared with venous ones. Disposable arterial blood syringe (DABS) usage is increasing in clinical practice. To compare the accuracy and stability of venous versus arterial blood results and newly emerging DABS versus traditionally used pre-heparinized syringe (PHS) results, we performed this study.Methods This retrospective study was performed at the emergency department of the Third Xiangya Hospital of Central South University. Participants were divided into two groups PHS and DABS, from which venous and arterial blood was drawn and analyzed either in laboratory or ABG-analyzer. Blood sample results were compared by the Pearson correlation coefficient and t-test. By removing extreme results, the sensitivity analysis was conducted.Results A total of 500 patients (64.80% male, mean age 63.55±16.82) and 400 patients (65.25% male, mean age 62.86±15.65) were enrolled in PHS and DABS groups, respectively. Compared with PHS group, DABS had a quite higher correlation coefficient in K + (0.923 vs. 0.855), Na + (0.911 vs. 0.850) and the differences between venous and arterial of all indicators (K + 0.202mmol/L vs. 0.318mmol/L, P<0.0001; Na + 1.187mmol/L vs. 2.902mmol/L, P<0.0001; Cl - -5.336mmol/L vs. –7.598mmol/L, P<0.0001; Hb -0.898g/L vs. 2.212g/L, P<0.0001; HCT -0.659% vs. 1.269%, P<0.0001) were significantly smaller in DABS group.Conclusion High accuracy was seen in arterial blood results irrespective of the usage of PHS or DABS for sample collection. DABS showed more accurate and stable results, suggesting its role for future medical use.


2019 ◽  
pp. 102490791988624
Author(s):  
Mustafa Gedikloglu ◽  
Muge Gulen ◽  
Salim Satar ◽  
Yahya Kemal Icen ◽  
Akkan Avci ◽  
...  

Objective: To investigate whether high-flow nasal cannula oxygen therapy could reduce the rate of endotracheal intubation and improve arterial blood gas values, vital signs, and clinical outcomes of patients with hypoxemic acute respiratory failure as compared with conventional oxygen therapy alone. Methods: This retrospective, observational study was performed in the 15-month study period and included adult patients with tachypnea and hypoxemia, whose vital signs and arterial blood gas were monitored. The high-flow nasal cannula oxygen group consisted of patients admitted to the emergency department with acute respiratory failure when high-flow nasal cannula oxygen treatment was available in the hospital, while the conventional oxygen therapy group consisted of patients who have presented to the emergency department with acute respiratory failure in the absence of high-flow nasal cannula oxygen device in the hospital. The primary outcome of the study was improvement in vital signs and arterial blood gas values within first and fourth hours of the treatment. The second outcome was the need for intubation in the emergency department, length of hospital stay, and hospital mortality. Results: The decrease in the pulse and respiratory rate of high-flow nasal cannula oxygen–treated group was significantly greater than the conventional oxygen therapy group on the first and fourth hours of treatment (p < 0.001). PaO2 values were significantly higher in the high-flow nasal cannula oxygen group at the first and fourth hours of treatment (p ⩽ 0.001). Likewise, mean SaO2 levels of patients receiving high-flow nasal cannula oxygen treatment was significantly higher than those of patients in the conventional oxygen therapy group (p = 0.006 at 1 h and p < 0.001 at 4 h). In the hypercapnic patients, the decrease in PaCO2 and increase in pH and PaO2 values were significantly greater in high-flow nasal cannula oxygen group (p < 0.001). The difference between the groups regarding the need for invasive mechanical ventilation was not statistically significant (p = 0.179). Conclusion: High-flow nasal cannula oxygen treatment has been associated with favorable effects in vital signs and arterial blood gas values in patients with acute respiratory failure. High-flow nasal cannula oxygen might be considered as the first-line therapy for patients with hypoxemic and/or hypercapnic acute respiratory failure.


Sign in / Sign up

Export Citation Format

Share Document