A Comparative Evaluation of Venous Blood Gas between Arterial and Venous Blood Samples in Patients of Acute Breathlessness
Authors/Creators
- 1. enior Resident, Department of Anaesthesia, Anugrah Narayan Magadh Medical College and Hospital, Gaya, Bihar, India
- 2. Associate Professor and HOD, Department of Anaesthesia, Anugrah Narayan Magadh Medical College and Hospital, Gaya, Bihar, India
Description
Abstract
Aim: The aim of the present study was to compare venous blood gas assessments for variables such as pH, pCO2,
bicarbonate and base excess between arterial and venous blood samples.
Methods: This Prospective study was conducted at ANMMCH Gaya by Department of Emergency Medicine for
the period of 2 years. 70 patients were included in the study.
Results: It was observed that the mean respiratory rate of the study conducted came out to be 32.2 breaths per
minute. The mean SpO2 of the patients observed to be 88.4 at room air. The mean pH in arterial blood came out
to be 7.43. The mean pH of venous sample observed to be 7.35 with p value of .028. The mean pCO2 values of
arterial blood observed to be 33.07. The mean pCO2 value of the venous blood samples was observed to be 39.51.
The mean arterial HCO3 level in the sample came out to be 17.63. The mean venous HCO3 value in the sample
came out to be 20.07. The mean PO2 level of arterial blood came out to be 92.76. The mean PO2 level of venous
blood came out to be 65.46.
Conclusion: The blood gas values for pH and HCO3 showed excellent agreement and correlation and can be
considered clinically interchangeable with arterial values. On venous pCO2 we found differing results and
therefore suggest the possible implementation of arterialization of venous blood gas which will make all these
values even more accurate and will allow the use of venous pCO2 in the clinical setting.
Abstract (English)
Abstract
Aim: The aim of the present study was to compare venous blood gas assessments for variables such as pH, pCO2,
bicarbonate and base excess between arterial and venous blood samples.
Methods: This Prospective study was conducted at ANMMCH Gaya by Department of Emergency Medicine for
the period of 2 years. 70 patients were included in the study.
Results: It was observed that the mean respiratory rate of the study conducted came out to be 32.2 breaths per
minute. The mean SpO2 of the patients observed to be 88.4 at room air. The mean pH in arterial blood came out
to be 7.43. The mean pH of venous sample observed to be 7.35 with p value of .028. The mean pCO2 values of
arterial blood observed to be 33.07. The mean pCO2 value of the venous blood samples was observed to be 39.51.
The mean arterial HCO3 level in the sample came out to be 17.63. The mean venous HCO3 value in the sample
came out to be 20.07. The mean PO2 level of arterial blood came out to be 92.76. The mean PO2 level of venous
blood came out to be 65.46.
Conclusion: The blood gas values for pH and HCO3 showed excellent agreement and correlation and can be
considered clinically interchangeable with arterial values. On venous pCO2 we found differing results and
therefore suggest the possible implementation of arterialization of venous blood gas which will make all these
values even more accurate and will allow the use of venous pCO2 in the clinical setting.
Files
IJCPR,Vol15,Issue11,Article137.pdf
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Additional details
Dates
- Accepted
-
2023-05-24