Correlation of Mean pH, HCO3 and CO2 Between Arterial Blood Gases and Venous Blood Gases in Critically Ill Patients
Objective: To determine the correlation of mean pH, HCO3 and CO2 between arterial and venous blood specimens in critically ill patients. Study Design: Cross-sectional study. Place and Duration of Study: Department of Chemical Pathology and Endocrinology, Armed Forces Institute of Pathology (A...
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| Format: | Article |
| Language: | English |
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Army Medical College Rawalpindi
2022-10-01
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| Series: | Pakistan Armed Forces Medical Journal |
| Subjects: | |
| Online Access: | https://www.pafmj.org/index.php/PAFMJ/article/view/3156 |
| _version_ | 1797987165451321344 |
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| author | Sanam Haneef Raza Jaffer Aamir Ijaz Qurrat-ul Ain Saba Aman Uzma Ansari |
| author_facet | Sanam Haneef Raza Jaffer Aamir Ijaz Qurrat-ul Ain Saba Aman Uzma Ansari |
| author_sort | Sanam Haneef |
| collection | DOAJ |
| description |
Objective: To determine the correlation of mean pH, HCO3 and CO2 between arterial and venous blood specimens in critically ill patients.
Study Design: Cross-sectional study.
Place and Duration of Study: Department of Chemical Pathology and Endocrinology, Armed Forces Institute of Pathology (AFIP), Rawalpindi, from Apr to Oct 2015.
Methodology: Forty critically ill patients admitted to the Intensive Care Unit were selected. Analysis of arterial blood gases followed by venous blood gases of the same patient was carried out after collection in lithium heparin tubes. Specimens were analyzed on COBAS 221 fully automated ABGs and an electrolyte analyzer.
Results: Out of 40 patients, 30 (75%) were males. The average age was 57.78±7.64 years. The p-value of pH and HCO3 was 0.259 and 0.921, respectively. The CO2 in VBGs was 58.10±11.35 mm Hg versus 36.32±6.69 mm Hg in ABG, with a p-value of 0.001, which was statistically significant.
Conclusion: In critically ill patients, pH and HCO3 levels of venous blood gases were comparable with ABG. VBG CO2 was significantly higher than ABGs.
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| first_indexed | 2024-04-11T07:44:25Z |
| format | Article |
| id | doaj.art-d7653ae0ea49474c8dc4019400a53da4 |
| institution | Directory Open Access Journal |
| issn | 0030-9648 2411-8842 |
| language | English |
| last_indexed | 2024-04-11T07:44:25Z |
| publishDate | 2022-10-01 |
| publisher | Army Medical College Rawalpindi |
| record_format | Article |
| series | Pakistan Armed Forces Medical Journal |
| spelling | doaj.art-d7653ae0ea49474c8dc4019400a53da42022-12-22T04:36:23ZengArmy Medical College RawalpindiPakistan Armed Forces Medical Journal0030-96482411-88422022-10-0172510.51253/pafmj.v72i5.3156Correlation of Mean pH, HCO3 and CO2 Between Arterial Blood Gases and Venous Blood Gases in Critically Ill PatientsSanam Haneef0Raza Jaffer1Aamir Ijaz2Qurrat-ul Ain3Saba Aman4Uzma Ansari5Pakistan Naval Ship Shifa Hospital, Karachi PakistanArmy Medical College/National University of Medical Sciences (NUMS) Rawalpindi PakistanRehman Medical College, Peshawar PakistanCombined Military Hospital Gilgit/National University of Medical Sciences (NUMS) PakistanPNS Shifa KarachiPakistan Naval Ship Shifa Hospital, Karachi Pakistan Objective: To determine the correlation of mean pH, HCO3 and CO2 between arterial and venous blood specimens in critically ill patients. Study Design: Cross-sectional study. Place and Duration of Study: Department of Chemical Pathology and Endocrinology, Armed Forces Institute of Pathology (AFIP), Rawalpindi, from Apr to Oct 2015. Methodology: Forty critically ill patients admitted to the Intensive Care Unit were selected. Analysis of arterial blood gases followed by venous blood gases of the same patient was carried out after collection in lithium heparin tubes. Specimens were analyzed on COBAS 221 fully automated ABGs and an electrolyte analyzer. Results: Out of 40 patients, 30 (75%) were males. The average age was 57.78±7.64 years. The p-value of pH and HCO3 was 0.259 and 0.921, respectively. The CO2 in VBGs was 58.10±11.35 mm Hg versus 36.32±6.69 mm Hg in ABG, with a p-value of 0.001, which was statistically significant. Conclusion: In critically ill patients, pH and HCO3 levels of venous blood gases were comparable with ABG. VBG CO2 was significantly higher than ABGs. https://www.pafmj.org/index.php/PAFMJ/article/view/3156Arterial blood gasesCritically ill patientsVenous blood gases |
| spellingShingle | Sanam Haneef Raza Jaffer Aamir Ijaz Qurrat-ul Ain Saba Aman Uzma Ansari Correlation of Mean pH, HCO3 and CO2 Between Arterial Blood Gases and Venous Blood Gases in Critically Ill Patients Pakistan Armed Forces Medical Journal Arterial blood gases Critically ill patients Venous blood gases |
| title | Correlation of Mean pH, HCO3 and CO2 Between Arterial Blood Gases and Venous Blood Gases in Critically Ill Patients |
| title_full | Correlation of Mean pH, HCO3 and CO2 Between Arterial Blood Gases and Venous Blood Gases in Critically Ill Patients |
| title_fullStr | Correlation of Mean pH, HCO3 and CO2 Between Arterial Blood Gases and Venous Blood Gases in Critically Ill Patients |
| title_full_unstemmed | Correlation of Mean pH, HCO3 and CO2 Between Arterial Blood Gases and Venous Blood Gases in Critically Ill Patients |
| title_short | Correlation of Mean pH, HCO3 and CO2 Between Arterial Blood Gases and Venous Blood Gases in Critically Ill Patients |
| title_sort | correlation of mean ph hco3 and co2 between arterial blood gases and venous blood gases in critically ill patients |
| topic | Arterial blood gases Critically ill patients Venous blood gases |
| url | https://www.pafmj.org/index.php/PAFMJ/article/view/3156 |
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