The radial artery on the wrist is most commonly used to obtain the sample. Arterial blood gas made easy slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. To make things simple, i will only refer to the three basic abg values in this post. How to interpret arterial blood gas results correspondence. The relative positions of the ph, paco2, and hco3 reveal the origin of any acid. Without knowing them, your patient could easily go. However, the more complicated and in some ways more important part of abg analysis is ph regulation. 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. This page is based on the bestseller in the us for the past decade on abgs. The base excess is the amount of acid which would have to be added to blood to correct the ph to 7. Monitoring of acidbase balance is done by testing patients arterial blood gases abgs.
May 06, 2015 abgs tic tac toe method for nurses with quiz. Youll be right most of the time if you remember this simple table. Remote work advice from the largest allremote company. Renal compensation that is not complete for 35 days in acute. Bicarb rises 1 meql for every 10 mmhg elevation in pco2. The following is a simplified explanation of abgs, including a practical method for interpreting results. You may be given an injection of local anesthetic to numb that area. Mar 31, 2008 arterial blood gas made easy slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Compensation rarely returns the ph to exactly normal, but it does sometimes get it closer. When we look at air, approximately 21% of it is made up of oxygen, 79% nitrogen, and a tiny fraction. Partial compensation ph is still abnormal, and the other value is abnormal in an attempt to help normalise the ph. Arterial blood gas abg interpretation for medical students, osces and mrcp paces this section presents how to interpret arterial blood gases. Arterial blood gas abg interpretation for medical students. Interpreting abgs arterial blood gases made easy ausmed.
In these problems, both the co2 and the hco3 are abnormal. Acidbase balance abg analysis nclex exam 1 10 questions. If you continue browsing the site, you agree to the use of cookies on this website. Acid normal alkaline ph paco2 hco3 the column that the ph is in tells you acidosis, or alkalosis. 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. Arterial blood is used because it provides the most accurate picture of whats going on with the patient. Adjust setting fio 2 and rate according to results of abg analysis to provide normal values or those set by the healthcare provider. Interpret the results of various arterial blood gas samples.
What is the lingo used with ventilators, and what do those settings mean. The best approach is to create a chart example provided below and to. This method is simple, easy and can be used for the majority of abgs. You can refine your search with the options on the left of the results page. Arterial blood gas abg interpretation is something many medical students find difficult to grasp weve been there. The health professional taking a sample of your blood will. Abg interpretation a guide to understanding abgs geeky medics. You cant have a middle name in the land of abg unless you get married and can share a last name. Diagnosis is made easier by understanding the pathophysiological mechanisms that cause hypoxaemia and hypercapnia. Apr 03, 2020 an arterial blood gas requires the nurse to collect a small sample of blood generally, a full 1 ml. Ventilators explained extremely easy for new nurses or nursing students in the icu setting.
Abg interpretation a guide to understanding abgs geeky. May 23, 20 arterial blood gases printable handout arterial blood gases pdf blood gas worksheet checklist download pdf you are a new staff member working in the emergency department ed. Abgs made easy for nurses w tic tac toe method for. But it is often encountered that many students dont know how to read abg, and thats why we are providing arterial blood gas. If you want to put your abg interpretation skills to the test, check out our abg quiz. Now you will want to move on to abg interpretation made easy part ii and, once you have oxygenation mastered, now its time for some practice. Over half of the book is devoted to thirty clinical case scenarios involving analysis of arterial blood gases, allowing the reader to gain both proficiency in interpretation and an appreciation of the role of an abg in guiding clinical diagnosis and management. We dont only want to interpret abg values for fun, they have a very important purpose. Arterial blood gases abg can be difficult and confusing to understand at first. Abg or arterial blood gas analysis made easy facebook. One of the first signs of an acid base problem is often a change in normal breathing patterns. It provides a near immediate reflection of the physiology of your patient, allowing you to recognise and treat pathology.
Identify normal arterial blood gas values and interpret the meaning of abnormal values. Aug 11, 2016 explore semperfiwyf0331s board nurse notes. Because the basics follow a logical pattern, a caregiver can quickly become an expert at analysis quite fastwell almost. It is simple, perhaps simplistic, but it will hopefully arm the reader with the tools and confidence to make better sense of abg results in future. However, its a crucial skill for nurses, physicians, respiratory therapists, and nursing students to learn. Ju clinical made easy to guide you throught clinical years in ju. Arterial blood gas abg tictactoe im honestly kind of mad that it took this long for me to discover this method because it is crazy easy. It can also be caused by a loss of alkali in the blood, leading to an acidbase mismatch in which theres more acid than base. Pdf version of a society for critical care medicine sccm lecture on arterial blood gas analysis opens in a new window. After setting up the abg problem with the tic tac toe method, you will be able to tell if the disorder is a respiratory or metabolic issue, alkalosis or acidosis, and fully, partially, or.
Abgs made easy for nurses, nursing school students with the tic tac toe method for nclex exam this video demonstrates how to setup arter. Interpretation of the arterial blood gas selflearning packet see swift for list of qualifying boards for continuing education hours. Everything that you need to know about arterial blood gasses. This is a thoughtfully designed book, which is very pleasing to the eye and, in the best possible way, easy on the brain. It is the bodys way to assist, to try to return the ph toward normal. This excellent pocketsized handbook, which can be read at one sitting, is an object lesson in clarity. Aug, 2018 easy way to interpret abg values in 7 simple steps overview of the 7 simple steps. Cell buffering that acts within minutes to hours 2.
Arterial blood gasses, or abgs, may be among the most complex and confusing parts of nursing practice. Dickmann, mms, rrt interpreting abgs is not as difficult a task as it may seem. Using the rome method ill show you how to be a pro in less than ten minutes. Identify the relationship between oxygen saturation and pao2 as it relates to the oxyhemoglobin dissociation curve. It explains each component in turn followed by clinical examples to work through.
Once we recognize that a patient has an alteration in effective breathing, interventions and diagnostic. The goal of interpreting abg values is so that we can decipher what is happening to our patient, so that we can implement a plan to help them improve. Interpretation of arterial blood gases abgs david a. What others are saying arterial blood gas abg tictactoe im honestly kind of mad that it took this long for me to discover this method because it is crazy easy.
Acidosis is an acidbase imbalance thats characterized by an abnormal accumulation of acid in the blood. Apr 10, 2015 abg interpretation is as easy as remembering four basic questions, and then answering them in sequence. To see how to perform an arterial blood gas check out our guide here. Abgs made easy for nurses w tic tac toe method for arterial. Nov 28, 2016 uncompensated or compensated abgs many times, a condition that leads to an abg diagnosis is battled by the bodys effort to help correct, or compensate.
Interpreting an arterial blood gas abg is a crucial skill for physicians, nurses, respiratory. With this test, a blood sample from an artery instead of a vein is analyzed. Using the abg to identify acidosis article nursingcenter. Once youve mastered this technique, youll be doing actual abg interpretation. The results of abg testing will often influence the treatment that patients receive. Knowing these proportions allows us to figure out the pressure of each portion. Using the abg to identify acidosis perkins, amanda msn, rn nursing made incredibly easy. Woodruff, msn, rnbc, cns, cen nurses often have difficulty interpreting arterial blood gases abgs. When one thinks of abg analysis, oxygenation may come to mind first. Slides from doctors 1st link newest version 20172018. Weve created this guide, which aims to provide a structured approach to abg interpretation whilst also increasing your understanding of each results relevance. Your doctor may run a blood gas analysis or arterial blood gas abg test if you are showing the signs of an oxygen, carbon dioxide, or ph imbalance such as confusion or difficulty breathing. Patients are often required to be checked for arterial blood gas analysis to find what exactly is happening in the body of patients system. Understanding arterial blood gases abgs nysna continuing.
Therefore, a basic understanding of how to interpret abg results can be useful for pharmacists to help them clarify the clinical picture. Blood can be drawn via an arterial stick from the wrist, groin, or above the elbow. Acidbase questions can be confusing if you do not create a systematic method. Everyone can read an electrolyte level, but when faced with a list of abgs, most nurses wilt. A guide to interpreting acidbase disorders article pdf available in hospital pharmacy 4310. However, the femoral artery and brachial artery can be used if necessary.
I have explained the steps of abg interpretation with the help of some good examples. Confusion often begins with trying to remember many random rules and lacking a standardized approach to abgs. The book is called arterial blood gas anslysis made easy isbn. Abgs made easy arterial blood gas interpretation in 10. This is bicarbonate, a chemical buffer made in the kidneys to neutralize acids. This is a video on abg arterial blood gas interpretation. Fortunately, there are some easy ways to remember how to decipher these important lab results. This tictactoe technique involves a few charts to help you visualize abgs. An arterial blood gas abg test is the lab test used to diagnose and evaluate acidbase imbalances. Nursing arterial blood gas interpretation is one of the hardest subjects youll have to learn in nursing school. Abgs made easy for nurses, nursing school students with the tic tac toe method for nclex exam this video demonstrates how to setup arterial blood gas. See more ideas about nursing notes, nursing tips and nursing students. When we look at air, approximately 21% of it is made up of oxygen, 79% nitrogen, and a tiny fraction 0.
Apr 09, 2019 are you an expert in interpreting abgs. The real value of an abg comes from its ability to provide a nearimmediate reflection of the physiology of your patient, allowing you to recognise and treat pathology more rapidly. Once you have finished doing this activity, youll be doing actual abg analysis in the nclex with fun and excitement. Mistakes in arterial blood gas abg interpretation are common in clinical practice. If the patient suddenly becomes confused or agitated or begins bucking the ventilator for some unexplained reason, assess for hypoxia and manually ventilate on 100% oxygen with a resuscitation bag. The most important points when assessing a patient are the history, examination and basic observations.
By the time your test comes up you should be an abg interpretation expert. An abg is the most accurate representation of a patients clinical status and correct interpretation can lead to quicker and more accurate changes in the. An arterial blood gas abg test will not be done on an arm used for dialysis or if there is an infection or inflammation in the area of the puncture site. This post was originally published on 81110 at respiratorytherapycave. University of connecticut acidbase online tutorial this site contains information on acidbase physiology, common acidbase abnormalities, cases. Of course then youll have to practice, practice, practice. Arterial blood gas abgs made easy for nurses tic tac.
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