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Arterial blood gas

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https://www.readbyqxmd.com/read/29351442/measurements-of-pulmonary-gas-exchange-efficiency-using-expired-gas-and-oximetry-results-in-normal-subjects
#1
John B West, Daniel L Wang, Gordon Kim Prisk
We are developing a novel, noninvasive method for measuring the efficiency of pulmonary gas exchange in patients with lung disease. The patient wears an oximeter, and we measure the partial pressures of oxygen and carbon dioxide in inspired and expired gas using miniature analyzers. The arterial PO2 is then calculated from the oximeter reading and the oxygen dissociation curve, using the end-tidal PCO2 to allow for the Bohr effect. This calculation is only accurate when the oxygen saturation is below 94% and therefore these normal subjects breathed 12...
December 20, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29346577/improved-success-rate-of-arterial-puncture-for-blood-gas-analysis-through-standardization
#2
Phillip R Jensen, Boaz A Markewitz
Background: Arterial puncture for blood gas analysis is a common procedure in hospitals. The aim of the study is to determine if standardizing technique elements of the arterial puncture process could improve the success rate of technicians through the full scope of an academic medical center. Methods: The study is conducted by the Blood Gas Laboratory at University of Utah Health's main campus. During the baseline period, technicians tallied whether arterial puncture attempts were successful or unsuccessful from December 2014 through February 2015...
January 13, 2018: Laboratory Medicine
https://www.readbyqxmd.com/read/29346176/rapid-response-to-scan-or-not-to-scan-the-utility-of-noncontrast-ct-head-for-altered-mental-status
#3
Purujit J Thacker, Mansha Sethi, Jonathan Sternlieb, Doron Schneider, Mary Naglak, Rajeshkumar R Patel
OBJECTIVES: The aims of the study were the following: (1) to determine how often computed tomography (CT) scans of the head are obtained on rapid responses called for altered mental status (AMS), (2) to determine whether CT imaging of the head is required during all rapid responses called for AMS, (3) to determine which patients would benefit from CT scans of the head in this setting, (4) to note whether an adequate neurologic exam was documented, (5) to determine the cost of CT scans that did not change management, and (6) to examine the role of medications leading to AMS...
January 17, 2018: Journal of Patient Safety
https://www.readbyqxmd.com/read/29343950/examining-30-day-copd-readmissions-through-the-emergency-department
#4
Michael E Rezaee, Charlotte E Ward, Bonita Nuanez, Daniel A Rezaee, Jeffrey Ditkoff, Alexandra Halalau
Background: Thirty-day readmission in COPD is common and costly, but potentially preventable. The emergency department (ED) may be a setting for COPD readmission reduction efforts. Objective: To better understand COPD readmission through the ED, ascertain factors associated with 30-day readmission through the ED, and identify subgroups of patients with COPD for readmission reduction interventions. Patients and methods: A retrospective cohort study was conducted from January 2009 to September 2015 in patients with COPD of age ≥18 years...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29342464/risk-factors-for-intraoperative-hypocapnia-in-pediatric-neurosurgical-patients-a-retrospective-cohort-study
#5
In-Kyung Song, Soolyoen Choi, Seohee Lee, Eun-Hee Kim, Ji-Hyun Lee, Hee-Soo Kim, Jin-Tae Kim
BACKGROUND: Hypocapnia has been associated with an increased risk and adverse outcomes in the injured brain. This study aimed to identify risk factors of intraoperative hypocapnia in pediatric neurosurgical patients when tidal volumes and respiratory rates were determined based on their weight and age, respectively. METHODS: Electronic medical records of pediatric patients (≤18 years) who underwent neurosurgery from December 2014 to January 2016 were retrospectively reviewed...
January 18, 2018: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29325304/-the-chinese-experts-consensus-on-the-evaluation-and-management-of-asthma-exacerbation
#6
(no author information available yet)
Asthma exacerbations can do a lot of harm to the patients and consume large amounts of medical resources. This consensus is based on the domestic and foreign guidelines and literatures to standardize the evaluation and management of asthma exacerbations in China. Asthma exacerbations are characterized by a progressive increase in symptoms of shortness of breath, cough, wheezing or chest tightness and progressive decrease in lung function, and usually require modification of treatment. Recognizing risk factors and triggering factors of asthma exacerbations is helpful for the prevention and long-term management...
January 1, 2018: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29319029/clinical-and-pulmonary-functions-profiling-of-patients-with-chronic-obstructive-pulmonary-disease-experiencing-frequent-acute-exacerbations
#7
Prem Parkash Gupta, Manjunath B Govidagoudar, Rohtas Yadav, Dipti Agarwal
PURPOSE: The present study aimed at clinical and pulmonary functions profiling of patients with chronic obstructive pulmonary disease (COPD) to anticipate future exacerbations. METHODS: The study included 80 COPD patients; 40 patients had ≥2 acute exacerbations during preceding 1 year (frequent exacerbation [FECOPD] group) and 40 patients had <2 acute exacerbations during preceding 1 year (infrequent exacerbation [I-FECOPD] group). Clinical profile, sputum microbiology, blood gas analysis, spirometric indices, and diffusion capacity (transfer test) variables were assessed...
January 2018: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/29316765/-analysis-of-clinical-features-in-patients-with-pneumoconiosis-complicated-with-pulmonary-emphysema
#8
X Li, W R Dai, L Li, W F Liu, Z X Yang, L Xie
Objective: To investigate the clinical features of pneumoconiosis complicated with pulmo-nary emphysema. Methods: selected 868 patients with pneumoconiosis were selected from December 2015 to December 2016 in Hunan occupational disease prevention and treatment hospital. Collected the results of high-resolution spiral CT, arterial blood gas, ECG, pulmonary function and MRC score. The subjects were divided into pneumoconiosis complicated with pulmonary emphysema group and simple pneumoconiosis group accord-ing to the results of HRCT...
November 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29316749/-effects-of-baicalin-on-the-changes-in-hemorheology-of-acute-respiratory-distress-syndrome-in-rats
#9
Z M Zhao, Y M Zheng, Y L Zhang, S Q Li
Objective: To investigate the effect of baicalin on the changes in hemorheology and its mechanism during the development of Acute Respiratory Distress Syndrome(ARDS) induced by oleic acid (OA) in rats. Methods: Rats were randomized into 3 groups: control, ARDS (OA induction, 0.12 mg/kg) and ba-icalin-treated group (300 mg/kg). The blood samples were collected at 30 min, 1, 2, 3, 6, 12 and 6 h after OA injection. The whole blood viscosity, plasma viscosity, Maximum erythrocyte deformability index (DImax) were detected...
November 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29308831/anemia-hypoalbuminemia-and-elevated-troponin-levels-as-risk-factors-for-respiratory-failure-in-patients-with-severe-exacerbations-of-chronic-obstructive-pulmonary-disease-requiring-invasive-mechanical-ventilation
#10
Gordana Pavliša, Marina Labor, Hrvoje Puretić, Ana Hećimović, Marko Jakopović, Miroslav Samaržija
AIM: To determine in-hospital and post-discharge mortality, readmission rates, and predictors of invasive mechanical ventilation (IMV) in patients treated at intensive care unit (ICU) due to acute exacerbations of chronic obstructive pulmonary disease (AECOPD). METHODS: A retrospective observational cohort study included all patients treated at a respiratory ICU for AECOPD during one year. A total of 62 patients (41 men) with mean age 68.4±10.4 years were analyzed for outcomes including in-hospital and post-discharge mortality, readmission rates, and IMV...
December 31, 2017: Croatian Medical Journal
https://www.readbyqxmd.com/read/29305566/an-update-report-on-the-harmonization-of-adult-reference-intervals-in-australasia
#11
Gus Koerbin, Ken Sikaris, Graham R D Jones, Robert Flatman, Jillian R Tate
The Australasian Association of Clinical Biochemists (AACB) has over the past 5 years been actively working to achieve harmonized reference intervals (RIs) for common clinical chemistry analytes using an evidence-based checklist approach where there is sound calibration and metrological traceability. It has now recommended harmonized RIs for 18 common clinical chemistry analytes which are performed in most routine laboratories and these have been endorsed by the Royal College of Pathologists of Australasia (RCPA)...
January 6, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29297798/evaluation-of-blood-gas-values-in-anesthetized-southern-white-rhinoceros-ceratotherium-simum-ventilated-with-a-novel-demand-ventilator-in-a-zoological-park-setting
#12
Mark Jeon, Khursheed R Mama, Jeffrey R Zuba, Nadine Lamberski, James E Oosterhuis, Meredith M Clancy, Katie W Delk, Matthew E Kinney, Patrick J Morris, Francisco Olea-Popelka
Rhinoceros conservation efforts are essential to the survival of the species. One such effort is focused on using advanced reproductive technologies to produce viable northern white rhinoceros ( Ceratotherium simum cottoni) embryos for implantation into southern white rhinoceros ( Ceratotherium simum simum) surrogates. Anesthesia may be required to facilitate necessary procedures in these surrogate rhinoceros, but commonly reported side effects including hypercapnia and hypoxemia limit anesthetic recumbency time due to animal safety concerns...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29283979/inhibition-of-rho-kinase-by-fasudil-attenuates-ischemic-lung-injury-after-cardiac-arrest-in-rats
#13
Jian Wei, Peng Wang, Yi Li, Qingli Dou, Jiali Lin, Wuyuan Tao, Jinle Lin, Xuan Fu, Zitong Huang, Wenwu Zhang
Lung injury is a common complication after cardiac arrest (CA) and cardiopulmonary resuscitation (CPR), and Rho kinase (ROCK) may be involved in the process of this injury. In this study, we aimed to study the effects of ROCK inhibition by fasudil on lung injury induced by asphyxial CA and CPR in rats. A total of 130 rats were randomized into three groups: Sham, Control, and Fasudil intervention group. Animals in the Fasudil intervention group were intraperitoneally administered with 10 mg/kg of the drug, 1 h before inducing CA...
December 27, 2017: Shock
https://www.readbyqxmd.com/read/29282084/r-100-improves-pulmonary-function-and-systemic-fluid-balance-in-sheep-with-combined-smoke-inhalation-injury-and-pseudomonas-aeruginosa-sepsis
#14
Hiroshi Ito, Erik Malgerud, Sven Asmussen, Ernesto Lopez, Andrew L Salzman, Perenlei Enkhbaatar
BACKGROUND: Septic shock is a major cause of death in intensive care units around the world . The aim of the study was to investigate whether the novel drug R-100 (a superoxide degradation catalyst and nitric oxide donor) improves pulmonary function in a sheep model of septic shock caused by Pseudomonas aeruginosa and smoke inhalation. METHODS: Eleven female sheep were prepared surgically and randomly assigned to a treatment group (n = 5) or a control group (n = 6) after inhalation of cooled cotton smoke and airway instillation of live P...
December 28, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29279631/a-clinical-study-on-the-initial-assessment-of-arterial-lactate-and-base-deficit-as-predictors-of-outcome-in-trauma-patients
#15
Rameshbabu Homanna Javali, Prithvishree Ravindra, Akkamahadevi Patil, Madhu Srinivasarangan, Harshit Mundada, S B Adarsh, S Nisarg
Background: Trauma is a leading cause of mortality in India. Outcomes can be improved by early recognition of hemorrhagic shock and expedited management. At present, we rely on traditional vital signs, which are not sensitive measures. Point of care biochemical markers have been emerging as prognostic markers in trauma, but have not been studied in Indian setting. Aims: This study aims to study the association between arterial lactate and base deficit (BD) at emergency department (ED) admission and 24 h outcome in trauma patients at risk of hemodynamic compromise...
November 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/29279250/pain-scores-for-intravenous-cannulation-and-arterial-blood-gas-test-among-emergency-department-patients
#16
Sendoa Ballesteros-Peña, Gorka Vallejo-De la Hoz, Irrintzi Fernández-Aedo
OBJECTIVES: To analyse vein catheterisation and blood gas test-related pain among adult patients in the emergency department and to explore pain score-related factors. METHOD: An observational and multicentre research study was performed. Patients undergoing vein catheterisation or arterial puncture for gas test were included consecutively. After each procedure, patients scored the pain experienced using the NRS-11. RESULTS: 780 vein catheterisations and 101 blood gas tests were analysed...
December 23, 2017: Enfermería Clínica
https://www.readbyqxmd.com/read/29278540/a-case-of-fatal-cerebral-air-embolism-after-blunt-lung-trauma-postmortem-computed-tomography-and-autopsy-findings
#17
Isabella Mercurio, Daniele Capano, Riccardo Torre, Aldo Taddei, Gianmarco Troiano, Michele Scialpi, Mario Gabbrielli
Cerebral air embolism is caused by gas bubbles in the vascular system. These bubbles can cause cerebral ischemia by obstructing encephalic blood vessels. It is frequently associated with blunt and penetrating chest trauma as well as iatrogenic interventions. Lung trauma involving laceration of the respiratory tract, lung parenchyma, and blood vessels may result in direct communication of these structures, driving air or gas into the pulmonary venous system. We report a case of a blunt chest trauma that led to massive arterial air embolism that was possible to recognize with the help of postmortem computed tomographic scan examination...
December 22, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29275618/-effects-of-non-muscle-myosin-%C3%A2-a-silenced-bone-marrow-mesenchymal-stem-cells-on-lung-damage-of-rats-at-early-stage-of-smoke-inhalation-injury
#18
M Z Liu, J J Wang, Z H Fu, Y C Li, Z Y Jiang, W Sun, G H Guo, F Zhu
Objective: To investigate the effects of non-muscle myosin ⅡA (NMⅡA) silenced bone marrow mesenchymal stem cells (BMSCs) on the lung damage of rats at early stage of smoke inhalation injury. Methods: Forty Sprague-Dawley rats were divided into control, simple injury, NMⅡA-BMSCs, and BMSCs groups according to the completely random method, with 10 rats in each group. Rats in control group inhaled air normally, while rats in the latter 3 groups inhaled smoke to reproduce model of smoke inhalation injury...
December 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29273712/lack-of-acclimatization-to-chronic-hypoxia-in-humans-in-the-antarctica
#19
Simone Porcelli, Mauro Marzorati, Beth Healey, Laura Terraneo, Alessandra Vezzoli, Silvia Della Bella, Roberto Dicasillati, Michele Samaja
The study was carried out at Concordia Station (Antarctic Plateau). The aim was to investigate the respiratory and haematological responses to hypoxia in healthy subjects living at constant altitude. Thirteen men and women (34.1 ± 3.1 years) were exposed for 10 months to hypobaric hypoxia (oxygen level equivalent to 3800 m asl). These unique conditions enable a greater accuracy of monitoring human responses to chronic hypoxia than can be achieved elsewhere. Blood haemoglobin and erythropoietin concentrations were determined at sea level (Pre), and after 3, 7, 20, 90 and 300 days at altitude...
December 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29262474/-clinical-application-of-electrical-velocimetry-in-monitoring-pediatric-blood-volume-after-cardiopulmonary-bypass
#20
J R Xue, B Li
Objective: To investigate the clinical applicability of electrical velocimetry (EV) in monitoring pediatric blood volume after cardiopulmonary bypass. Method: Between July 2016 and November 2016, 60 children with congenital heart disease were divided into EV group and traditional central venous pressure (CVP) group randomly. For EV group, the volume of fluid and vascular active medicine was adjusted according to the monitoring stroke volume variation (SVV) hemodynamic parameters. Whereas for CVP group empirical volume of fluid infusion was managed by the monitoring traditional hemodynamic parameters such as CVP, blood pressure, heart rate, urine volume and blood gas analysis...
December 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
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