Arterial blood pH: 7.38 to 7.42; Oxygen saturation (SaO2): 94% to 100%; Bicarbonate (HCO3): 22 to 28 milliequivalents per liter (mEq/L) At altitudes of 3,000 feet (900 meters) and higher, the oxygen value is lower. Reference values for arterial blood gases should be based on subjects representative of the general healthy population. PaCO2. Blood oxygen levels (PO 2 level; normal range 10.5 to 13.5 KPa) - if the PO 2 level is low, it indicates an abnormally low concentration of blood oxygen (hypoxaemia). Details about (i) pH (ii) Oxygenation, oxygen saturation, oxygen content, alveolar gas equation, indices of oxygenation (iii) Carbon dioxide transport, Pco 2 total CO 2 content, and bicarbonate levels (iv) Base excess and buffer base 5. Normal. by Kemal Gunaydin Introduction Measurements of PaO2, PaCO2, SaO2, pH, and bicarbonate values are made with arterial blood gas (ABG) analysis in order to determine the acid-base balance and respiratory regulation. The normal blood pH range is 7.35 to 7.45. What are the most common arterial blood gas abnormalities? The following six-step process helps ensure a complete interpretation of every ABG. The normal range for ABGs is used as a guide, and the determination of disorders is often based on blood pH. PaO 2 tells us about the partial pressure of oxygen dissolved in arterial blood. Print primer [237k PDF*] Introduction; Acid-Base Status . Most neonatologists use venous blood gas in neonates for metabolic evaluation and monitoring gas exchange, but not for monitoring oxygenation 1) . The measurement of arterial blood gas tensions and oxygen saturation (S o 2) is a cornerstone in the evaluation of pulmonary disease severity. The first step in evaluating a blood gas report is to look at pH. Background: Umbilical cord blood gas values are better indicators of perinatal asphyxia than Apgar scores. The normal range is 7.35 - … adult hemoglobin at normal temperature and blood pH. Cathy Parkes RN, covers Arterial Blood Gas (ABG) Interpretation - Introduction: Normal Ranges & Steps in Interpretation. You must always interpret them in light of the patient’s history and clinical presentation. Terms and Normal Values; How the Data Are Presented; Before you get started; A Step-wise Approach to Interpretation. At a PaO 2 of 90 mmHg, 95 percent of hemo-globin is saturated with oxygen. Normal. These ranges vary from lab to lab and depend upon the elevation above sea level. It also measures your body’s acid-base (pH) level, which is usually in balance when you’re healthy. 2. An Arterial Blood Gas, or ABG for short, is a test that measures the blood levels of oxygen (PaO2), carbon dioxide (PaCO2), and acid-base balance (pH) in the body.It’s a test that is used to assess how well oxygen is being distributed throughout the body and how well carbon dioxide is being removed. The normal range of SaO 2 is 95% to 100%. Your lab may have a different range for what's normal. Normal hemoglobin is 60 percent saturated at a PaO2 of 30 mmHg and 90 percent saturated at a PaO2 of 60 mmHg. Acidity or alkalinity of the blood can be measured with pH values. Terms in this set (5) pH. The test is commonly known as a blood gas analysis or arterial blood gas (ABG) test. The PaCO2 is directly measured and is used to estimate CO2 exchange. Gravity. 7.35-7.45. An arterial blood gas (ABG) test measures the acidity (pH) and levels of oxygen and carbon dioxide in the blood. The pH of a solution is equal to the negative log of the hydrogen ion concentration in that solution: pH = – log [H+]. Normal values for PaCO2 are usually 35-45 mmHg. Term infant to 2 years of age Ph7.3-7.4 Paco2 30-40 Pao2 80-100 Bicarb 20-22 Older than 2 are the same as adult values. Arterial blood gas (ABG) analysis is an important laboratory method that provides reliable information about the patient’s metabolic status and respiratory physiology. Normal Values. An arterial blood gas (ABG) test measures the acidity (pH) and levels of oxygen and carbon dioxide in the blood. Normal. PaO2. This study aimed to establish the reference values of umbilical cord blood gases of normal cesarean newborns in a university hospital setting. Learn normal values arterial blood gas with free interactive flashcards. 28 – 48 mm Hg Many studies have reported normal ranges of umbilical cord blood gases, which vary greatly due to many factors. A Primer on Arterial Blood Gas Analysis by Andrew M. Luks, MD. Created by. ABG Predicted Normal Values Arterial blood gas analysis is important in managing patients with cardiopulmonary diseases. Normal Values in Arterial Blood Gas . This results in a slightly more acidic “normal” pH range. What does the Arterial Blood Gas Analysis measure? The normal range for arterial blood pH is 7.35 to 7.45. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Arterial blood gas analysis is used to measure the pH and the partial pressures of oxygen and carbon dioxide in arterial blood. Arterial blood gases should never be interpreted by themselves. These ranges vary from lab to lab and depend upon the elevation above sea level. Before actually starting to interpret the ABG reports, one needs to remember the following normal values, without which, it is impossible to analyze anything. Terminology and normal arterial blood gases 3. As we start our Arterial Blood Gas course, I want to start by helping you understand what is included in an ABG and why we use ABGs in our patients.Sometimes ABGs can be very intimidating because there are a lot of values to look at, but hopefully this will help to … ABG parameters, reference range and alert values (reported by the authors’ lab). Choose from 500 different sets of normal values arterial blood gas flashcards on Quizlet. When interpreting arterial blood gas (ABG) results, it is essential to know what ABG values are considered ‘normal’. Normal Blood Gases: Arterial: Venous: pH: 7.35 – 7.45: 7.32 – 7.42: Not a gas, but a measurement of acidity or alkalinity, based on the hydrogen (H+) ions present. The basic components of Arterial Blood Gas are divided as follows: pH; HCO3; PaCo2; pH: 7.35-7.45 As dead space increases, there is less equilibration between arterial and alveolar CO2 tensions and this ratio increases. – The partial pressure of oxygen– It is the pressure of oxygen in the arterial blood (dissolved in plasma) and is denoted by P02. robyn811. When arterial blood is analyzed, the main variables are: pH - a measure of how acidic or alkaline the blood is. An arterial blood gas (ABG) test measures the acidity (pH) and levels of oxygen and carbon dioxide in the blood. To determine acid-base imbalance, you need to know and memorize these values to recognize what deviates from normal. Normal Values to check in ABG. Arterial blood pH, the amount of hydrogen ions in the blood: A pH of 7.35-7.45 is considered normal. These ranges vary from lab to lab and depend upon the elevation above sea level. pH. Components of the Arterial Blood Gas The arterial blood gas provides the following values: pH Measurement of acidity or alkalinity, based on the hydrogen (H+) ions present. Bicarbonate (HCO3): A chemical buffer that helps stabilize blood pH. PaO2: 80 to 100 mm Hg. Your lab may have a different range for what's normal. Interpreting an arterial blood gas (ABG) is a crucial skill for physicians, nurses, respiratory therapists, and other health care personnel. Full details on the methods and equipment used is available in their article. Normal value ranges may vary slightly among different laboratories. Video Transcript . From this baseline, you can then begin to recognise significant variations in a patient’s results, which could indicate clinical deterioration. You can check all the values seen in ABG on wikipedia. The normal values listed here—called a reference range—are just a guide. A venous blood gas test is identical to an arterial blood gas measurement, except the blood is drawn from a venous site. ABG interpretation is especially important in critically ill patients. Blood oxygen saturation (SaO2): The amount of oxygen carried by the hemoglobin in the red blood cells. Understanding the print outs 4. The normal values listed here—called a reference range—are just a guide. The most common ABG abnormalities detected relate to an excess of acid. The normal values will have a slightly different reference range if they are from a venous or capillary sample. Simple and mixed disorders 6. 229 arterial blood gases Proceedings of Singapore Healthcare Volume 20 Number 3 2011 Table 1. The normal range of PaO 2 is 80 to 100 mm Hg. Normal blood gas values 7.25