This video tutorial is on how to setup arterial blood gas problems using the tic tac toe method. Abgs provide three assessments of the function of the respiratory system. Abgs are important to know and the best way to become familiar with them is to practice. Arterial blood gas abg interpretation is something many medical students find difficult to grasp weve been there. An abg is a blood test that measures the acidity, or ph, and the levels of oxygen o2 and carbon dioxide co2 from an artery.
Download abg acidbase eval and enjoy it on your iphone, ipad, and ipod touch. Abg interpretation steps to abg interpretation step 1. While the analyzer can often help with analysis, the history of the patient is critical for accurate interpretation. The components of an abg analysis are pao 2, sao 2, hydrogen ion concentration ph, paco 2, hco 3. Abg quick interpretation parameter acidosis normal alkalosis reflects ph 7. Ryan barnes, bsn, rn, pccncsc 2 comments arterial blood gases abgs are used to monitor patients on ventilators, monitor critically ill nonventilator patients, establish preoperative baseline parameters and regulate electrolyte therapy. Online medical calculator for the analysis of arterial blood gases abg interpretation. A guide to interpreting acidbase disorders article pdf available in hospital pharmacy 4310. Abg interpretation is especially important in critically ill patients. Mar 14, 2017 interpreting abgs for the first time is hard, if you watch this video you will learn that it can actually be very easy.
Started in 1995, this collection now contains 6769 interlinked topic pages divided into a tree of 31 specialty books and 732 chapters. Arterial blood gas abg interpretation for medical students, osces and mrcp paces this section presents how to interpret arterial blood gases. Interpretation of the arterial blood gas selflearning packet see swift for list of qualifying boards for continuing education hours. Interpret the results of various arterial blood gas samples. Arterial blood gas interpretation calculator abg analysis. Interpretation of arterial blood gases abgs david a. Abg examples abg exam questions for medical students osces and mrcp paces below are some brief clinical scenarios with abg results. Abgs made easy for nurses w tic tac toe method for. Download fulltext pdf download fulltext pdf abcs of abgs. It only addresses acidbase balance and considers just 3 values. This guide provides a structured approach to abg interpretation, including. Interpreting the information obtained from an abg result, combined with the patients history and our knowledge of normal pathophysiology as it applies to acidbase balance will help us to plan how to resolve the problem lippincott, 2012.
Arterial blood gas abg calculator medical calculators pediatric. Many authors contend that drawing of umbilical abgs is a simple method to evaluate the condition of the neonate and ideally would be routinely done for all newborns. Interpret the oxygenation state of a patient using the reported arterial blood gas pao2 value. In this guide, we will teach you the eight 8 steps on how to interpret and analyze arterial blood gas abg results using the tictactoe method. From this baseline, you can then begin to recognise significant variations in a patients results, which could indicate clinical deterioration.
Information for patients, resources for physicians. Interpreting abgs arterial blood gases made easy ausmed. Weve created this guide, which aims to provide a structured approach to abg interpretation whilst also increasing your understanding of each results relevance. The following sixstep process helps ensure a complete interpretation of every abg. Jul 01, 20 nurses must be able to analyse abgs, even at a superficial level, because changes in pao. Nurses must be able to analyse abgs, even at a superficial level, because changes in pao. Compensation can be seen when both the pco2 and hco3 rise or fall together to maintain a normal ph. Interpreting abgs suneel kumar md arterial blood gases written in following manner. The test is used to check the function of the patients lungs and how well they are able to move oxygen and remove carbon dioxide. The arterial blood gases calculator calculates whether an individual is in metabolic acidosis, metabolic alkalosis, respiratory acidosis, respiratory alkalosis, or is normal. This test is commonly performed in the icu and er setting. This calculator only differentiates between acute ph abnormal and compensated ph normal. When interpreting arterial blood gas abg results, it is essential to know what abg values are considered normal. Ryan barnes, bsn, rn, pccncsc 2 comments arterial blood gases abgs are used to monitor patients on ventilators, monitor critically ill nonventilator patients, establish preoperative.
Blood gas interpretation in the neonate what do you need. When the ph is normal, it will be fully compensated. Arterial oxygen tension pao 2 is the partial pressure of oxygen in arterial blood. Sodium and chloride are required for anion gap calculation. This method is simple, easy and can be used for the majority of abgs. Ppt interpreting abgs powerpoint presentation free to. This is the partial pressure of carbon dioxide dissolved in plasma. The arterial blood gas abg analyzer interprets abg findings and values. Arterial blood gas analysis is a common investigation in emergency departments and intensive care units for monitoring patients with acute respiratory failure. The ratio between the pao 2 and the inspired oxygen concentration expressed as a fraction fio 2 is termed the pao 2 fio 2 ratio or the p.
Abgs made easy for nurses w tic tac toe method for arterial. Blood gas interpretation in the neonate what do you need to. The main determinants of pao 2 are the inspired oxygen concentration, alveolar gas exchange, and, to a lesser extent, tissue oxygen consumption. Its a test that is used to assess how well oxygen is being distributed throughout the body and how well carbon dioxide is being removed. Arterial blood gas abg calculator medical calculators. He had a large bowel resection the previous day, has a background of type 2 diabetes, and is a current smoker. This is a nonfinal version of an article published in final form in. Calculator of arterial blood gas abg upon arterial blood gas abg interpretation analysis, you could come to know, 1 oxygenation of blood through gas exchange in the lungs. If the pa co2 is less than 35 mm hg,more carbon dioxide is being exhaled than normal. The calculator also determines whether the state is compensated or uncompensated. Using the rome method ill show you how to be a pro in less than ten minutes. A normal pao2 in a patient on high flow oxygen this is abnormal as you. It explains each component in turn followed by clinical examples to work through.
A free powerpoint ppt presentation displayed as a flash slide show on id. Below are a few examples to demonstrate how important context is when interpreting an abg. Arterial blood gas abg interpretation for medical students. Abg interpretation free download as powerpoint presentation. This tictactoe technique involves a few charts to help you visualize abgs. Abg interpretation a guide to understanding abgs geeky medics. It also has some applications in general practice, such as assessing the need for domiciliary oxygen therapy in patients with chronic obstructive pulmonary disease. The book makes the distinction between acute and chronic disorders based on symptoms from identical abgs. Determine the cause of the acidosis or alkalosis by looking at the pco2 and hco3if ph abgs. Interpreting abgs for the first time is hard, if you watch this video you will learn that it can actually be very easy. All information contained in and produced by the pediatric oncall system is provided for educational purposes. Abg examples abg exam questions for medical students and.
This is a measure of the overall concentration of hydrogen ions. The authors make no claims of the accuracy of the information contained herein. Dimensions of critical care nursing dccn, 322, 8487. Identify the relationship between oxygen saturation and pao2 as it relates to the oxyhemoglobin dissociation curve. Just copy and paste the below code to your webpage where you want to display this calculator. You are called to see a 54 year old lady on the ward. The usefulness of this diagnostic tool is dependent on being able to correctly interpret the results. Try to interpret each abg and formulate a differential diagnosis before looking at the answer. Creative ways to teach arterial blood gas interpretation. Body will not overcompensate when it comes to acidbase balance so. This worksheet includes 5 practice abgs to help you learn how to interpret with ease. If it outside range, then it is uncompensated or partially compensated. Appropriate general principles guide clinicians when drawing and interpreting abgs for all patients.
Before getting stuck into the details of the analysis, its important to look at the patients current clinical status, as this provides essential context to the abg result. This analyzer should not substitute for clinical context. Well friend, lets break it down so its not that complicated. Arterial blood gas interpretation arterial blood gas analysis is an essential part of diagnosing and managing a patients oxygenation status and acid base balance. Abg interpretation a guide to understanding abgs geeky. Arterial blood gases are blood taken from an artery, normally the radial artery, which. Interpreting an arterial blood gas abg is a crucial skill for physicians, nurses, respiratory. An arterial blood gas, or abg for short, is a test that measures the blood levels of oxygen pao2, carbon dioxide paco2, and acidbase balance ph in the body.
Arterial blood gas analysis is an essential part of diagnosing and managing a patients oxygenation status and acidbase balance. How are arterial blood gases abgs results interpreted. Apr 03, 2020 an abg is a blood test that measures the acidity, or ph, and the levels of oxygen o2 and carbon dioxide co2 from an artery. Arterial blood gas interpretation is one of the hardest subjects youll have to learn in nursing school. On examination his arterial blood pressure is 10465 mm hg, his heart rate 2 beatsmin and irregular, and his respiratory rate 22 breathsmin. Once youve mastered this technique, youll be doing actual abg interpretation. Confusion often begins with trying to remember many random rules and lacking a standardized approach to abgs. Interpreting an arterial blood gas abg is a crucial skill for physicians, nurses, respiratory therapists, and other health care personnel. If the paco2 is greater than 45 mm hg,less carbon dioxide is being exhaled than. Jul 24, 2017 3 easy steps for interpreting abgs date.
Woodruff, msn, rnbc, cns, cen nurses often have difficulty interpreting arterial blood gases abgs. Included with the worksheet are physiological reasons for abnormalities. Arterial blood gases abg calculator hacked by 4lf45t. Monitoring abgs allows detection of deterioration in a patients condition and management of treatment. The most important points when assessing a patient are the history, examination and basic observations.835 1041 820 123 1493 3 1332 681 357 961 1065 817 1208 742 436 999 458 1104 562 706 1527 84 547 1497 1487 1227 1409 1358 645 477 816 1103 199 187