ABG interpretation

Background and purpose - In a previous registry report, short-term implant survival of hip resurfacing arthroplasty (HRA) in Finland was found to be comparable to that of total hip arthroplasty (THA). Since then, it has become evident that adverse reactions to metal debris (ARMDs) may also be associated with HRA, not only with large-diameter head metal-on-metal THA. The aim of the study was to assess medium- to long-term survivorship of HRA based on the Finnish Arthroplasty Register (FAR). Patients and methods - 5,068 HRAs performed during the period 2001-2013 in Finland were included...

Outcome for patients experiencing out-hospital cardiac arrest (OHCA) due to respiratory causes is poor, even with treatment by therapeutic hypothermia (TH). The purpose of this study is to clarify difference in outcome and respiratory state during resuscitation between cases due to respiratory causes versus those due to cardiac causes, to establish alternative strategies for the patient. This study was conducted as a retrospective analysis of patients with post CA syndrome who underwent TH. Patients were divided into two groups according to cause of CA: cardiac (C group) or respiratory (R group)...

BACKGROUND: Patients with sepsis admitted to the intensive care unit often present with acid-base disorders. As the traditional interpretation might be clinically misleading, an alternative approach described by Stewart may allow one to quantify the individual components of acid-base abnormalities and provide an insight into their pathogenesis. The aim of our study was to compare the traditional and Stewart approaches in the analysis of acid-base disturbance. METHODS: We analyzed arterial blood gases (ABG) taken from 43 ICU septic patients from admission to discharge categorising them according to SBE values...

Arterial blood gas (ABG) analysis is a crucial skill for perioperative nurses, in particular the RN circulator. This article provides the physiological basis for assessing ABGs perioperatively and presents a systematic approach to blood gas analysis using the Romanski method. Blood gas sample data allow the reader to practice ABG interpretation. In addition, four case studies are presented that give the reader the opportunity to analyze ABGs within the context of surgical patient scenarios. The ability to accurately assess ABGs allows the perioperative nurse to assist surgical team members in restoring a patient's acid-base balance...

BACKGROUND: An antibiogram (ABG) gives the results of in vitro susceptibility tests performed on a pathogen isolated from a culture of a sample taken from blood or other tissues. The institutional cross-ABG consists of the conditional probability of susceptibility for pairs of antimicrobials. This paper explores how interpretative reading of the isolate ABG can be used to replace and improve the prior probabilities stored in the institutional ABG. Probabilities were calculated by both a naïve and semi-naïve Bayesian approaches, both using the ABG for the given isolate and institutional ABGs and cross-ABGs...

Finite element analysis (FEA) is increasingly used to investigate the brain under various pathological changes. Although FEA has been used to study hydrocephalus for decades, previous studies have primarily focused on ventriculomegaly. The present study aimed to investigate the pathologic changes regarding sulcal deformation in normal pressure hydrocephalus (NPH). Two finite element (FE) models-an anatomical brain geometric (ABG) model and the conventional simplified brain geometric (SBG) model-of NPH were constructed...

This article examines acid-base balance and the interpretation of arterial blood gases (ABG). The article begins with a brief revision of related physiology, followed by a description of the primary disorders associated with acid-base imbalance. The normal ranges and the significance of abnormal ABG results are explored. The article concludes by providing an easy to follow four-step guide to ABG interpretation with practice examples presented in the CPD task section.

Arterial blood gas (ABG) machines are vital tools in the assessment of critically ill patients. Current ABG point-of-care (POC) analysers provide information on concentrations of haemoglobin, glucose and electrolytes in addition to acid-base balance. Awaiting results from venous analysers may present a significant delay in diagnosis and management, thus reliance on arterial blood gas determination of these parameters is increasing. However, published data on the concordance between the two modalities are limited...

This article examines acid-base balance and the interpretation of arterial blood gases (ABG). The article begins with a brief revision of related physiology followed by a description of the primary disorders of acid-base balance. The normal ranges and the significance of abnormal ABG results are explored. The article concludes by providing an easy to follow four-step guide to ABG interpretation with practice examples presented in the continuing professional development (CPD) task section.

INTRODUCTION: Arterial blood gas (ABG) analyses have an important role in the assessment and monitoring of the metabolic and oxygen status of patients with acute exacerbation of chronic obstructive pulmonary disease (COPD). Arterial puncture could have a lot of adverse effects, while sampling of venous blood is simpler and is not so invasive. OBJECTIVE: The aim of this study was to evaluate whether venous blood gas (VBG) values of pH, partial pressure of carbon dioxide (PCO2), partial oxygen pressure (PO2), bicarbonate (HCO3), and venous and arterial blood oxygen saturation (SO2) can reliably predict ABG levels in patients with acute exacerbation of COPD...

OBJECTIVE: To determine postoperative hearing outcomes after surgical plugging via middle cranial fossa approach for superior semicircular canal dehiscence syndrome (SCDS). STUDY DESIGN: Clinical review. SETTING: Tertiary care medical center. PATIENTS: Forty-three cases of SCDS based on history, physical examination, vestibular function testing, and computed tomography imaging confirming the presence of a dehiscence...

OBJECTIVE: To evaluate the role of computed tomographic (CT) pulmonary angiography (CT-PA) in detecting additional information that may help in making an alternative clinical diagnosis in patients referred to CT for a suspected acute pulmonary embolism (PE). MATERIALS AND METHODS: 50 patients (34 males, 16 females) in the age group of 18-72 years (mean 42.3 years), having high clinical suspicion of PE, underwent CTPA over a 2 year period. Chest x-ray, arterial blood gas (ABG) analysis, echocardiography were done in all patients...

Disorders of acid-base balance can lead to severe complications in many disease states, and occasionally the abnormality may be so severe as to become a life-threatening risk factor. The process of analysis and monitoring of arterial blood gas (ABG) is an essential part of diagnosing and managing the oxygenation status and acid-base balance of the high-risk patients, as well as in the care of critically ill patients in the Intensive Care Unit. Since both areas manifest sudden and life-threatening changes in all the systems concerned, a thorough understanding of acid-base balance is mandatory for any physician, and the anesthesiologist is no exception...

No abstract text is available yet for this article.

INTRODUCTION: It is not currently known how accurately emergency medicine (EM) doctors interpret arterial blood gases (ABG). The present study explores this question. METHODS: A prospective, cross-sectional study of EM doctors was undertaken. An ABG interpretation test was completed by participants. Scores were compared with 'expert level' scores. Confidence with ABG interpretation and satisfaction with ABG training was investigated using a 10 cm visual analogue scale...

PURPOSE/OBJECTIVES: To determine the effectiveness of a computer-based learning module specific to arterial blood gas (ABG) interpretation. DESIGN: A pretest and posttest design was used to assess staff nurses' ability to interpret ABGs before and after engaging in a computer-based module. SETTING: Two community hospitals in northern Illinois. SAMPLE: Fifty-eight staff nurses completed the online learning module and the pretest and posttest measures...

This is the first of a two-part unit on arterial blood gas (ABG) analysis, and focuses on background information and basic interpretation of ABGs where no evident compensation is taking place. It discusses the various components on an ABG report, the normal ranges and the significance of abnormal readings. A detailed step-by-step guide to ABG interpretation is available in the Portfolio Pages for this unit at nursingtimes.net, as well as practice examples.

This is the second of a two-part unit discussing arterial blood gas (ABG) analysis. Part 1 outlined background information on ABG reports and focused on a systematic approach to ABG analysis. This part examines the physiology of the various lines of defence in the body and explores the concept of compensation. A step-by-step guide to interpretation and examples of uncomplicated ABGs are available in the Portfolio Pages for this unit at nursingtimes.net, as well as further practice examples relevant to this part of the unit...

Interpreting arterial blood gases (ABGs) is a common practice in intensive care units. The use of the temperature correction facility, however, is not standardized, and the effects of temperature correction on the ABG result may affect the overall management of the patient. The aim of this study was to discuss the significance of temperature correction. Current practice in the UK and Australia is discussed along with a review of physiological principles of oxygenation and acid-base balance. The alpha-stat and pH-stat methods of blood gas analysis are presented, with arguments for and against using the temperature correction facility for blood gas analysis...

In a surfactant-depletion model of lung injury, tidal recruitment of atelectasis and changes in shunt fraction lead to large Pao2 oscillations. We investigated the effect of these oscillations on conventional arterial blood gas (ABG) results using different sampling techniques in ventilated rabbits. In each rabbit, 5 different ventilator settings were studied, 2 before saline lavage injury and 3 after lavage injury. Ventilator settings were altered according to 5 different goals for the amplitude and mean value of brachiocephalic Pao2 oscillations, as guided by a fast responding intraarterial probe...