ABG Practice Answers – Part 1

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Interpret the following ABG Values to determine what type of Acid-Base Imbalance is present.

Uncompensated examples

1) pH: 7.30, PaCO2: 38, HCO3: 18 = Metabolic Acidosis

2) pH: 7.25; PaCO2: 50; HCO3: 23 = Respiratory Acidosis

3) pH: 7.49; PaCO2: 33; HCO3: 25 = Respiratory Alkalosis

Partially Compensated examples

1) pH: 7.48; PaCO2: 47; HCO3:30 = Metabolic Alkalosis

2) pH: 7.33; PaCO2: 49; HCO3: 28 = Respiratory Acidosis

3) pH: 7.52; PaCO2: 52; HCO3: 33 = Metabolic Alkalosis

Compensated examples

1) pH: 7.43; PaCO2: 27; HCO3: 18 = Respiratory Alkalosis

2) pH: 7.35; PaCO2: 48; HCO3: 31 = Respiratory Acidosis

3) pH: 7.39; PaCO2: 34; HCO3: 21 = Metabolic Acidosis

Unknown – Figure it out for yourself! 🙂

1) pH: 7.32; PaCO2: 33; HCO3: 20 = Partially Compensated Metabolic Acidosis

2) pH: 7.49; PaCO2: 30; HCO3: 25 = Uncompensated Respiratory Alkalosis

3) pH: 7.32; PaCO2: 47; HCO3: 30 = Partially Compensated Respiratory Acidosis

4) pH: 7.43; PaCO2: 48; HCO3: 35 = Compensated Metabolic Alkalosis

5) pH: 7.38; PaCO2: 43; HCO3: 24 = Normal…no imbalance!

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