Exam II Rules for ABG & Interpretation
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| C02 is always what? | Acidotic
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| HC03 is always what? | Alkalotic
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| In the resp. parameters, what ONLY can manipulate C02? | Lungs
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| In the metabolic parameters, what ONLY can manipulate HC03? | Kidneys
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| What are the 2 ways to become acidotic? | Gain acid or lose base
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| What are the 2 ways to become alkalotic? | Gain base or lose acid
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| Normal values for pH (H+ ion concentration)? | 7.35 - 7.45
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| Normal values for PC02 (Resp.component)? | 35 - 45
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| Normal values for HC03 (metabolic component)? | 22 - 26
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| Normal values for Pa02 | 80 - 100
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| Normal value for Base Excess? | ±2
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| Base Excess < 2 is what? | Metabolic acidosis
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| Base Excess >2 is what? | Metabolic alkalosis
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| What is Base Excess & Base Deficit | Reflects non-respiratory contribution to acid-base balance
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| What is step 1 in ABG interpretation? | Does the PaO2 level indicate hypoxemia?
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| What is step 2 in ABG interpretation? | Is the pH level on the acid or alkaline side of 7.40?
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| What is step 3 in ABG interpretation? | Does the PaCO2 level indicate respiratory acidosis, alkalosis or normalcy?
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| What is step 4 in ABG interpretation? | Does the HCO3 level indicate metabolic acidosis, alkalosis or normalcy?
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| What is step 5 in ABG interpretation? | Does the pH show a compensated or uncompensated condition?
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| Rule for uncompmsated pH? | An abnormal pH + one abnormal value (either PCO2 or HCO3)
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| Interprete this: pH 7.25, Pc02 50, HC03 24. | Respiratory acidosis uncompensated
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| Interprete this: pH 7.51, PC02 30, HC03 26. | Respiratory alkalosis uncompensated
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| Rule for Partial pH compensation? Tips All values abnormal. | An Abnormal pH + 2 abnormal values (PCO2 and HCO3)
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| Interprete this: pH 7.31, PC02 32, HC03 18. | Metabolic acidosis with partial compensation
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| Interprete this: pH 7.58, PC02 32, HC03 20 | Respiratory alkalosis with partial compensation
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| Rule for Full pH compnsation? | A Normal pH + 1 or 2 abnormal values (pCO2 and/or HCO3)
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| Interprete this: pH 7.38, PC02 49, HC03 32. | Resp. acidosis with full compensation
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| Interprete this: pH 7.43, PC02 32, HC03 21. | Resp. alkalosis w/ full compensation
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| What are tne panic values of pH? | <7.2 and >7.6
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| Panic values for PaC02 is? | <20 and >70
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| Panic level of HC03 is? | <10 and >40
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| Pa02 value <80mmHg is indicative of? | Hypoxemia.
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| Interprete this: pH 7.44, PaCO2 28, HCO3 24, PaO2 54. | Compensated Respiratory Alkalosis with hypoxemia
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| pH= 7.48, PaCO2= 28, HCO3= 22, PaO2= 85, | Respiratory Alkalosis: Uncompensated
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| pH= 7.33, PaCO2= 25, HCO3= 12, PaO2= 89. | Metabolic Acidosis with Partial compensation
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| pH= 7.49, PaCO2= 40, HCO3= 32, PaO2= 100. | Metabolic alkalosis: uncompensated
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| pH= 7.31, PaCO2= 53, HCO3= 29, PaO2= 95. | Respiratory Acidosis: partial compensation
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| pH= 7.32, PaCO2=44, HCO3=18, PaO2=85. | Metabolic Acidosis: Uncompensated
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| pH= 7.54, PaCO2= 25, HCO3= 20, PaO2= 80. | Respiratory Alkalosis with Partial compensation
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| pH= 7.29, PaCO2= 51, HCO3= 24, PaO2= 90 | Respiratory acidosis: uncompensated
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| pH= 7.42, PaCO2= 55, HCO3= 33, PaO2= 90 | Metabolic Alkalosis with complete compensation
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