The first priority for the respiratory system is ph. Arterial blood gases abg results reflect underlying pathology and interpretation of the results are often compounded by ongoing disease processes and clinical interventions. Mistakes in arterial blood gas abg interpretation are common in clinical practice. These disorders are termed complex acidbase or mixed disorders. Possible dialysis to remove excess lactate, manipulation of ventilation settings to adjust co2 levels, but always maintaining tissue perfusion. The best approach is to create a chart example provided below and to.
A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Pdf arterial blood gas analysis is a common investigation in emergency departments and intensive care units for monitoring patients with acute. You are watching an educational video about interpreting abgs. The following is a simplified explanation of abgs, including a practical method.
Interpreting an arterial blood gas abg is a crucial skill for physicians, nurses, respiratory therapists, and other health care personnel. These steps will make more sense if we apply them to actual abg. Abgs made easy arterial blood gas interpretation in 10. Abg analysis can also determine blood acidity ph level. If partial pressure of carbon dioxide pco2 goes down, partial pressure of oxygen po2 should go up. Analyzetheph thefirststep toanalyzingabgsistolookattheph. Arterial blood gas analysis for emergency medicine registrars very helpful investigation in critical care you should be an expert you need a system, and must be thorough they are not really that hard part 1 the basics part 2 compensation part 3 metabolic acidosis part 4 metabolic alkalosis. Abg interpretation is as easy as remembering four basic questions, and then answering them in sequence. So, i thought it would be nice to do a little post about abg analysis, mainly the tic.
Learn an easy way to interpret abgs for nursing school. Apr 01, 2020 therefore, the 6 easy steps to abg analysis was developed to provide nurses with an accurate and systematic method of easily interpreting arterial blood gases. However, the more complicated and in some ways more important part of abg analysis is ph regulation. This app helps in abg diagnosis and make understanding this complex subject easy. Determine if ph is under normal, acidosis, or alkalosis. By using simple graphs, lots of pictures, and about a 9th grade reading level, two men have finally made understanding abg s easy. Understanding arterial blood gases abgs nysna continuing. Everyone can read an electrolyte level, but when faced with a list of abgs, most nurses wilt.
Arterial blood gas abg interpretation is something many medical students find difficult to grasp weve been there. Interpretation of the arterial blood gas selflearning packet see swift for list of qualifying boards for continuing education hours. Arterial blood gas analysis for emergency medicine registrars. It is designed as h and and puts the hh equation at the centre stage. Nov 18, 2015 abg equipment 3 electrode system that measures three fundamental variables po2, pco2 and ph all others parameters such as hco3 computed by software using standard formulae 11. On the first screen it clearly shows that bicarbonate is a calculated parameter. It is simple, perhaps simplistic, but it will hopefully arm the reader with the tools and confidence to. Fortunately, there are some easy ways to remember how to decipher these important lab results. Test your knowledge on the webs most interactive blood gas learning tool. Acidbase questions can be confusing if you do not create a systematic method. Jan 31, 2018 acidbase questions can be confusing if you do not create a systematic method. 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 the test is used to check the function of the patients lungs and how well they are able to move oxygen into the blood and remove carbon dioxide. This is the partial pressure of carbon dioxide dissolved in plasma.
Interpretation of abg gas exchange acid base status 12. This will require a slightly different approach to the blood gas analysis. The net deviation in ph will indicate whether an acidosis or an alkalosis is present. Sign up to receive my blogemail updates and receive a free handout to develop clinical j. Body will not overcompensate when it comes to acidbase balance so. Arterial blood gasses, or abgs, may be among the most complex and confusing parts of nursing practice. Of course then youll have to practice, practice, practice.
Analyze the paco 2 paco 2 45 acidosis paco 2 regular abg monitoring and recording for trends. We have created three arterial blood gas analysis slidesets. Its possible to have more than one disorder influencing blood gas values. This table is able to classify most clinical blood gas values but not all. The 6 easy steps to abg analysis are listed below for easy reference and will be explained in more detail in the sections that follow. Feb 22, 2017 do not be intimidated by abg interpretation no longer. But, interpreting abg results has always been very complicateduntil now.
I have explained the steps of abg interpretation with the help of some good examples. That makes the interpretation of these abg results is uncompensated respiratory acidosis. Woodruff, msn, rnbc, cns, cmsrn, cen 6 easy steps to. If it outside range, then it is uncompensated or partially compensated. Abg interpretation free download as powerpoint presentation. If you continue browsing the site, you agree to the use of cookies on this website. Jan 16, 2019 there are eight 8 steps simple steps you need to know if you want to interpret abg results using the tictactoe technique. Mar 31, 2008 arterial blood gas made easy slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. For respiratory the ph will head in the opposite direction as the co 2. The cause of the acidosis is the p a co 2, which is the respiratory component of the abg results. When one thinks of abg analysis, oxygenation may come to mind first.
Thus far we have looked at simple arterial blood gas values without any. Interpretation of the arterial blood gas emergencypedia. For example abg s with an alkalemic ph may exhibit respiratory acidosis and metabolic alkalosis. The arterial blood gas abg measures the acidbase balance ph and oxygenation of an arterial blood sample. Hes taught nurses, physicians, paramedics, and respiratory therapists. These presentations provides a introduction to arterial blood gas procedures, abgs interpretation and 15 practice cases. It measures ventilation how well the body can get rid of co2. This will be the only video you will need to interpret your abgs. Interpretation of arterial blood gases is an essence of critical care. Arterial blood gas presentation arterial blood gas interpretation. 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. The best approach is to create a chart example provided below and to memorize the normal values of ph, co2, and hco3. Identify normal arterial blood gas values and interpret the meaning of abnormal values. By the time your test comes up you should be an abg interpretation expert.
Weve created this guide, which aims to provide a structured approach to abg interpretation whilst also increasing your understanding of each results relevance. The second part of the book contains a series of 30 clinical scenarios each requiring interpretation of an arterial blood gas as the end point. Understanding arterial blood gases abgs nysna continuing education the new york state nurses association is accredited as a provider of continuing nursing education by. Arterial blood gas abg analysis use this handy reference guide to help you understand and interpret arterial blood gas results, and assess patients oxygenation, acidbase balance, respiratory function and metabolic status. The following is a simplified explanation of abgs, including a practical method for interpreting results. Abg interpretation a guide to understanding abgs geeky. Following are the steps one should follow when reading the arterial blood gas and interpreting the values simultaneously. This is a measure of the overall concentration of hydrogen ions. In addition, you will be tested on if the disorder is partially compensated or uncompensated based on the lab values. Oxygen content of blood is affected by level and affinity state of hemoglobin. This is a video on abg arterial blood gas interpretation. The following is a simplified explanation of abgs, including a practical. Most doctors struggle with arterial blood gas abg interpretation.
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