Assess the patient s abg values. Identify the relationship between oxygen saturation and pao2 as it relates to the oxyhemoglobin dissociation curve.
An abg is performed and reveals the following.
Abg values interpretation. 4 5 6 0 kpa po 2. 7 49 7 35 7 45. A base excess more than 2 meq l indicates a metabolic alkalosis.
In patients with hypoalbuminemia the normal anion gap is lower than 12 meq l. How to interpret an abg. Start by looking at the ph and decide if the value is normal 7 35 7 45 high 7 45 or low 7 35.
Read and understand each question before choosing the best answer. If the ph 7 35 then the patient is acidosis remember the lower the ph number the higher the acid level in the body. 11 13 kpa hco 3.
Interpretation of arterial blood gases abgs is a crucial skill that a lot of student nurses and medical practitioners need to learn. The normal range for paco2is 35 to 45 mmhg. 2 to 2 sao 2 95 pao 2 should fio 2 2 10 alveolar arterial gradient.
They have no significant past medical history and are not on any regular medication. If a patient s ph 7 45 the patient is in alkalosis. In this guide we ll help you understand the concepts behind arterial blood gas and teach you the easiest and most fun way to interpret abgs using the tic tac toe method.
Now we are finally ready to assess the patient s abg values. The first value a nurse should look at is the ph to determine if the patient is in the normal range above or below. Arterial blood gas interpretation practice quiz 20 items part 2.
An abg is performed on the patient who is not currently receiving any oxygen therapy. Interpret the results of various arterial blood gas samples. The normal anion gap in patients with hypoalbuminemia is about 2 5 meq l lower for each 1 gm dl decrease in the plasma albumin concentration for example a patient with a plasma albumin of 2 0 gm dl would be approximately 7 meq l.
10 increased in emphysema fibrosing alveolitis age lactate 2 abg interpretation remember. Normal is considered to be from 22 to 26 mmol l. 14 11 13 kpa 105 mmhg 82 5 97 5 mmhg ph.
This should be super easy since you already wrote the reference values for ph at the top of your scratch paper. Since this is a review answers and rationales are shown after you click on the check button. 3 hco h step 1 oxygenation.
Identify normal arterial blood gas values and interpret the meaning of abnormal values. Arterial blood gas interpretation practice quiz 20 items guidelines. A value outside of the normal range 2 to 2 meq l suggests a metabolic cause for the acidosis or alkalosis.
Finally bicarbonate ions or hco3 will tell you if the problem is related to metabolic changes in your patient and refers to the renal system berman et al. In terms of basic interpretation. A base excess less than 2 meq l indicates a metabolic acidosis.