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Venous Blood Gas

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1. Acid-base assessment of post-parturient German Holstein dairy cows from jugular venous blood and urine: A comparison of the strong ion approach and traditional blood gas analysis. (PubMed)

Acid-base assessment of post-parturient German Holstein dairy cows from jugular venous blood and urine: A comparison of the strong ion approach and traditional blood gas analysis. Evaluating acid-base status is important for monitoring dairy herd health. In a field study, we aimed to compare the acid-base status measured by net acid-base excretion (NABE) in urine with results of venous blood analysis in clinically healthy, but possibly metabolically burdened cows in their transition period (...) theory, particularly SIDm, Atot and SIG or XA, provided more in-depth information about acid-base status than the traditional parameters BE, bicarbonate or AG in blood. The acid-base status of fresh cows with protein aberrations in blood could be differentiated in a much better way using the strong ion approach than by traditional blood gas analysis or by the measurement of urinary excretion. Therefore, the strong ion approach seems to be a suitable supplement for monitoring acid-base balance

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2019 PLoS ONE

2. Venous blood gas in free-living eastern box turtles (Terrapene carolina carolina) and effects of physiologic, demographic and environmental factors (PubMed)

Venous blood gas in free-living eastern box turtles (Terrapene carolina carolina) and effects of physiologic, demographic and environmental factors Sustainable wildlife populations depend on healthy individuals, and the approach to determine wellness of individuals is multifaceted. Blood gas analysis serves as a useful adjunctive diagnostic test for health assessment, but it is uncommonly applied to terrestrial reptiles. This study established reference intervals for venous blood gas panels (...) in free-living eastern box turtles (Terrapene carolina carolina, N = 102) from Illinois and Tennessee, and modeled the effects of environmental and physiologic parameters on each blood gas analyte. Blood gas panels included pH, partial pressure of oxygen (pO2), partial pressure of carbon dioxide (pCO2), total carbon dioxide (TCO2), bicarbonate (HCO3-), base excess (BE) and lactate. Candidate sets of general linear models were constructed for each blood gas analyte and ranked using an information

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2018 Conservation physiology

3. Calculated arterial blood gas values from a venous sample and pulse oximetry: Clinical validation. (PubMed)

Calculated arterial blood gas values from a venous sample and pulse oximetry: Clinical validation. Arterial blood gases (ABG) are essential for assessment of patients with severe illness, but sampling is difficult in some settings and more painful than for peripheral venous blood gas (VBG). Venous to Arterial Conversion (v-TAC; OBIMedical ApS, Denmark) is a method to calculate ABG values from a VBG and pulse oximetry (SpO2). The aim was to validate v-TAC against ABG for measuring pH, carbon (...) kPa), v-TAC had sensitivity 100%, specificity 93.8% and accuracy 97%. The accuracy of v-TAC for detecting hypoxemia (PaO2<8.0 kPa) was comparable to that of pulse oximetry. Agreement with ABG was higher for v-TAC than for VBG for all analyses.Calculated arterial blood gases (v-TAC) from a venous sample and pulse oximetry were comparable to ABG values and may be useful for evaluation of blood gases in clinical settings. This could reduce the logistic burden of arterial sampling, facilitate improved

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2019 PLoS ONE

4. Prediction of arterial blood gas values from venous blood gas values in Asiatic black bears (Ursus thibetanus) anesthetized with intramuscular medetomidine and zolazepam-tiletamine (PubMed)

Prediction of arterial blood gas values from venous blood gas values in Asiatic black bears (Ursus thibetanus) anesthetized with intramuscular medetomidine and zolazepam-tiletamine The objective of this study was to measure differences between arterial and venous blood gas parameters and to evaluate whether arterial blood gas values can be estimated from venous blood in Asiatic black bears (ABBs). Twelve healthy captive ABBs (8 males and 4 females; 8-16 years; 76.8-220 kg) were included (...) in this study. The bears were immobilized with medetomidine and zolazepam-tiletamine using a dart gun. Arterial and venous samples were collected simultaneously at 5 and 35 min after recumbency (5- and 35-min points). Partial pressure of oxygen (PO2), partial pressure of carbon dioxide (PCO2), pH, bicarbonate (HCO3-), total carbon dioxide (TCO2), oxygen saturation of hemoglobin (SO2) and base excess (BEecf) were analyzed using a portable blood gas analyzer. There was no marked difference in measured

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2017 The Journal of Veterinary Medical Science

5. Capillary and venous lactate measurements with a handheld device compared to venous blood-gas analysis for emergency patients. (PubMed)

Capillary and venous lactate measurements with a handheld device compared to venous blood-gas analysis for emergency patients. Early identification of lactate levels may have a large impact on triage classification and assist in identifying critically ill patients. A handheld device provides a rapid and timesaving measurement of lactate levels adapted to work in a prehospital care setting. I.e., the device is small, fast, and easy-to-use. The aim of this study was to evaluate the Accutrend Plus (...) handheld lactate analyzer in comparison to the reference in-hospital method.Patients triaged as minimum yellow according to the RETTS System (Rapid Emergency Triage and Treatment System) and transported to hospital by ambulance were selected and a written consent to participate was obtained prior to inclusion in the study. Capillary (CAP) and venous (VEN) blood were analyzed with Accutrend Plus (AP). Venous blood samples were analyzed at the local hospital laboratory (GEM premier 4000) within 20 min

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2018 Scandinavian journal of trauma, resuscitation and emergency medicine

6. Arterio-venous blood gas Δvalues for validation of umbilical cord blood samples at birth are biased not only by sample mix ups but also affected by clinical factors. (PubMed)

Arterio-venous blood gas Δvalues for validation of umbilical cord blood samples at birth are biased not only by sample mix ups but also affected by clinical factors. Traditional validation of umbilical cord blood samples with positive veno-arterial ΔpH and arterio-venous ΔpCO2 values confirms the source of samples, whereas negative Δvalues represent mix-up of samples. To investigate whether this is true, the distributions of V-A ΔpO2 and A-V Δlactate were also explored and related to clinical (...) characteristics. In addition, different cord blood sampling techniques were evaluated.Register study with cord blood acid-base and clinical data from 27 233 newborns. Clinical characteristics were related to positive, zero and negative Δvalues. Blood samplings from unclamped and double-clamped cords were compared. A two-sided P < 0.05 was considered significant.ΔpH and ΔpCO2 values distributed into positive, around zero, and negative sub-populations, with significant differences in pH and clinical

2018 Acta Obstetricia et Gynecologica Scandinavica

7. Effect of blood collection by the push-pull technique from an indwelling catheter versus direct venipuncture on venous blood gas values before and after administration of alfaxalone or propofol in dogs. (PubMed)

Effect of blood collection by the push-pull technique from an indwelling catheter versus direct venipuncture on venous blood gas values before and after administration of alfaxalone or propofol in dogs. OBJECTIVE To compare the effect of blood collection by a push-pull technique from an indwelling IV catheter versus direct venipuncture on venous blood gas values before and after administration of alfaxalone or propofol to dogs. DESIGN Prospective randomized clinical study. ANIMALS 30 healthy (...) veins; 1 by direct venipuncture and 1 by use of a push-pull technique from a 20-gauge catheter. All blood samples underwent venous blood gas analysis immediately after collection. Results were compared between sample collection techniques before and after anesthesia induction and between anesthesia induction protocols. RESULTS All results were within established reference ranges. For many variables, statistically significant but clinically irrelevant differences were detected between samples

2018 Journal of the American Veterinary Medical Association Controlled trial quality: uncertain

8. In patients presenting with an exacerbation of COPD can a normal venous blood gas pCO2 rule out arterial hypercarbia?

In patients presenting with an exacerbation of COPD can a normal venous blood gas pCO2 rule out arterial hypercarbia? BestBets: In patients presenting with an exacerbation of COPD can a normal venous blood gas pCO2 rule out arterial hypercarbia? In patients presenting with an exacerbation of COPD can a normal venous blood gas pCO2 rule out arterial hypercarbia? Report By: Mark Woods - Consultant in Emergency Medicine Search checked by David Hodgson - ST5 Emergency Medicine Institution: Whiston (...) Hospital, Merseyside, UK and Mersey School of Emergency Medicine, UK Date Submitted: 31st August 2012 Date Completed: 10th March 2015 Last Modified: 11th March 2015 Status: Green (complete) Three Part Question In [patients with an Acute Exacerbation of COPD] can a [normal venous blood gas CO2] [rule out arterial hypercarbia]? Clinical Scenario A 74 year old male patient with known COPD presents acutely breathless with widespread wheeze. He refuses an arterial blood gas (ABG) and complains that last

2015 BestBETS

9. Correlation of Venous Blood Gas and Pulse Oximetry With Arterial Blood Gas in the Undifferentiated Critically Ill Patient (PubMed)

Correlation of Venous Blood Gas and Pulse Oximetry With Arterial Blood Gas in the Undifferentiated Critically Ill Patient Blood gas analysis is often used to assess acid-base, ventilation, and oxygenation status in critically ill patients. Although arterial blood gas (ABG) analysis remains the gold standard, venous blood gas (VBG) analysis has been shown to correlate with ABG analysis and has been proposed as a safer less invasive alternative to ABG analysis.The purpose of this study (...) the study. Of the patients completing the study, 53 (41.1%) were in the ED, 41 (31.8%) were in the medical ICU, and 35 (27.1%) were in the surgical ICU. The mean difference for pH between VBG and ABG was 0.03 (95% confidence interval: 0.03-0.04) with a Pearson correlation of 0.94. The mean difference for pCO2 between VBG and ABG was 4.8 mm Hg (95% confidence interval: 3.7-6.0 mm Hg) with a Pearson correlation of 0.93. The SpO2 correlated well with PaO2 (the partial pressure of oxygen in arterial blood

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2016 Journal of intensive care medicine

10. Laboratory reference intervals for systolic blood pressure, rectal temperature, haematology, biochemistry and venous blood gas and electrolytes in healthy pet rabbits (PubMed)

Laboratory reference intervals for systolic blood pressure, rectal temperature, haematology, biochemistry and venous blood gas and electrolytes in healthy pet rabbits Prospective data from 86 healthy pet rabbits were evaluated to establish reference intervals for hematology, biochemistry, urinalysis, venous blood gas and electrolytes, rectal temperature and systolic blood pressure. Reference intervals for rectal temperature (37.4-39.6 ºC) and systolic blood pressure (75-134 mm/Hg) were (...) previously unreported in pet rabbits. Differences by more than 30% with reference intervals present in the bibliography were observed in the blood biochemistry and urinalysis, being attributed to the variability in methodological factors with the present study.

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2017 Open veterinary journal

11. Pneumatosis intestinalis and hepatic portal venous gas associated with gas-forming bacterial translocation due to postoperative paralytic ileus: A case report. (PubMed)

Pneumatosis intestinalis and hepatic portal venous gas associated with gas-forming bacterial translocation due to postoperative paralytic ileus: A case report. Pneumatosis intestinalis (PI) and hepatic portal venous gas (HPVG) are rare but potentially lethal conditions in which gas pathologically accumulates in the portal vein and intestinal wall, respectively. Proposed mechanisms include flatus escaping through an injured intestinal mucosa into the submucosa and thence into the portal venous (...) with BT of gas-forming organisms.Cardiopulmonary resuscitation was unsuccessful.Postmortem imaging indicated the presence of massive PI and HPVG. At autopsy, there was marked intestinal emphysema with diffuse ischemic mucosal necrosis and severe pneumatosis in the stomach and intestine and marked gaseous dilation of the intrahepatic portal veins. Postmortem bacterial cultures revealed enteric bacteria in the peripheral blood and liver tissue.Postoperative ileus leading to intestinal mucosal damage may

2019 Medicine

12. Reliability of forearm oxygen uptake during handgrip exercise: assessment by ultrasonography and venous blood gas (PubMed)

Reliability of forearm oxygen uptake during handgrip exercise: assessment by ultrasonography and venous blood gas Assessment of forearm oxygen uptake (V˙O2 ) during handgrip exercise is a keenly investigated concept for observing small muscle mass metabolism. Although a combination of Doppler ultrasound measurements of brachial artery blood flow (Q˙) and blood gas drawn from a deep forearm vein has been utilized to calculate forearm V˙O2 for more than two decades, the applicability (...) ˙ difference was 11.9 mL·min-1 (LOA: 84.1 mL·min-1 ; -60.4 mL·min-1 ) with CVs between 4 and 7%. Test-retest difference for a-vO2diff was -0.28 mL·dL-1 (LOA: 1.26mL·dL-1 ; -1.82 mL·dL-1 ) with 3-5% CVs. In conclusion, our results revealed that forearm V˙O2 determination by Doppler ultrasound and direct venous sampling is linearly related to WR, and a reliable experimental design across a range of exercise intensities.© 2018 The Authors. Physiological Reports published by Wiley Periodicals, Inc. on behalf

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2018 Physiological reports

13. Assessment of haemoglobin measurement by several methods - blood gas analyser, capillary and venous HemoCue<sup>®</sup> , non-invasive spectrophotometry and laboratory assay - in term and preterm infants. (PubMed)

Assessment of haemoglobin measurement by several methods - blood gas analyser, capillary and venous HemoCue® , non-invasive spectrophotometry and laboratory assay - in term and preterm infants. A laboratory haematology analyser is the gold standard for measuring haemoglobin concentration but has disadvantages, especially in neonates. This study compared alternative blood-sparing and non-invasive methods of haemoglobin concentration measurement with the gold standard. Haemoglobin (...) concentrations were measured using a laboratory haematology analyser (reference method), blood gas analyser, HemoCue® using venous and capillary blood samples and a newly developed non-invasive sensor for neonates < 3 kg. A total of 63 measurements were performed. Body weight (2190 (1820-2520 [967-4450]) g) and haemoglobin concentration (12.3 (10.6-15.2 [8.2-20.5]) g.dl-1 ) varied widely. Bias/limits of agreement between the alternative methods and reference method were -0.1/-1.2 to 1.0 g.dl-1 (blood gas

2018 Anaesthesia

14. The cost-effectiveness of venous-converted acid-base and blood gas status in pulmonary medical departments

The cost-effectiveness of venous-converted acid-base and blood gas status in pulmonary medical departments Untitled Document The CRD Databases will not be available from 08:00 BST on Friday 4th October until 08:00 BST on Monday 7th October for essential maintenance. We apologise for any inconvenience.

2011 NHS Economic Evaluation Database.

15. Mathematical Arterialization of Venous Blood Gas

Mathematical Arterialization of Venous Blood Gas Mathematical Arterialization of Venous Blood Gas - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. Mathematical Arterialization of Venous Blood Gas The safety (...) Hospital Information provided by (Responsible Party): Mads Lumholdt, Aalborg University Study Details Study Description Go to Brief Summary: Objective: Arterial blood gas (ABG) analysis is essential in the clinical assessment of potential acutely ill patients. Venous to arterial conversion (v-TAC), a mathematical method, has recently been developed to convert peripheral venous blood gas (VBG) values to arterialized VBG (aVBG) values. The aim of this study was to test the reliability of aVBG compared

2017 Clinical Trials

16. Is Venous to Arterial Conversion (v-TAC) of Blood Gas Reliable in Critical Ill Patients in the ICU?

Is Venous to Arterial Conversion (v-TAC) of Blood Gas Reliable in Critical Ill Patients in the ICU? Is Venous to Arterial Conversion (v-TAC) of Blood Gas Reliable in Critical Ill Patients in the ICU? - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please (...) remove one or more studies before adding more. Is Venous to Arterial Conversion (v-TAC) of Blood Gas Reliable in Critical Ill Patients in the ICU? The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. of clinical studies and talk to your health care provider before participating. Read our for details. ClinicalTrials.gov Identifier: NCT03309423 Recruitment Status

2017 Clinical Trials

17. Agreement between venous and arterial blood gas analysis of acid-base status in critical care and ward patients: a retrospective cohort study. (PubMed)

Agreement between venous and arterial blood gas analysis of acid-base status in critical care and ward patients: a retrospective cohort study. To determine whether the use of venous blood gases can be a suitable alternative to arterial sampling to evaluate acid-base status.The database of the clinical laboratory in a large academic hospital was searched for records of venous blood gas analysis and an arterial sample taken within ten minutes from the same patient. Bland-Altman analyses of pH (...) sample may then be considered for confirmation, and thereafter, venous blood gases could be sufficient for monitoring response to treatment.

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2017 Canadian Journal Of Anaesthesia

18. Using venous blood gas analysis in the assessment of COPD exacerbation.

Using venous blood gas analysis in the assessment of COPD exacerbation. Using venous blood gas analysis in the assessment of COPD exacerbation. – Less Is More Search for: Simpler & Better Medicine Menu / Summary: For a patient with an acute exacerbation of chronic obstructive pulmonary disease (AECOPD) and an initial pulse-oximetry reading of > 80%, management guided by venous blood gas (if pH > 7.35) may be just as effective as management guided by arterial blood gas sampling but with less

2016 Less Is More Blog

19. Agreement and Correlation between Arterial and Central Venous Blood Gas Following Coronary Artery Bypass Graft Surgery (PubMed)

Agreement and Correlation between Arterial and Central Venous Blood Gas Following Coronary Artery Bypass Graft Surgery Arterial blood sampling, used to assess patients in acute conditions, may result in complications such as thrombosis and embolism. However, it can be replaced by venous blood sampling, but there is a dearth of information on this.To assess the correlation and agreement between the arterial and central venous blood gases analyses in patients undergoing elective Coronary Artery (...) Bypass Graft (CABG) surgery.In this cross-sectional study, 100 ICU patients undergoing elective CABG surgery were recruited. 2 mm arterial and a 2 mm venous blood samples were obtained from each patient's arterial and central venous lines, respectively. To predict Arterial Blood Gas (ABG) values based on central Venous Blood Gas (VBG) values, the linear regression analysis was used and for evaluating their agreement Bland-Altman method was used.In total of 200 samples were obtained. The mean

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2017 Journal of clinical and diagnostic research : JCDR

20. Correlation of central venous pressure with venous blood gas analysis parameters; a diagnostic study (PubMed)

Correlation of central venous pressure with venous blood gas analysis parameters; a diagnostic study This study was conducted to assess the correlation between central venous pressure (CVP) and venous blood gas (VBG) analysis parameters, to facilitate management of severe sepsis and septic shock in emergency department.This diagnostic study was conducted from January 2014 until June 2015 in three major educational medical centers, Tehran, Iran. For patients selected with diagnosis of septic (...) shock, peripheral blood sample was taken for testing the VBG parameters and the anion gap (AG) was calculated. All the mentioned parameters were measured again after infusion of 500 cc of normal saline 0.9% in about 1 h.Totally, 93 patients with septic shock were enrolled, 63 male and 30 female. The mean age was 72.53 ± 13.03 and the mean Shock Index (SI) before fluid therapy was 0.79 ± 0.30. AG and pH showed significant negative correlations with CVP, While HCO3 showed a significant positive

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2016 Turkish journal of emergency medicine

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