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Name: ____________________ Date: ____________
1.Easy
A practice arterial blood gas shows pH 7.48, PaCO₂ 28 mmHg (3.7 kPa) and HCO₃⁻ 20 mmol/L. Which primary disorder is it? Click the cell in the grid.
pH 7.48PaCO₂ 28 mmHg (3.7 kPa)HCO₃⁻ 20 mmol/L
1respiratory acidosis
2metabolic acidosis
3respiratory alkalosis
4metabolic alkalosis
2.Easy
A practice arterial blood gas shows pH 7.56, PaCO₂ 38 mmHg (5.1 kPa) and HCO₃⁻ 33 mmol/L. Which primary disorder is it? Click the cell in the grid.
pH 7.56PaCO₂ 38 mmHg (5.1 kPa)HCO₃⁻ 33 mmol/L
1respiratory acidosis
2metabolic acidosis
3respiratory alkalosis
4metabolic alkalosis
3.Medium
A practice arterial blood gas shows pH 7.16, PaCO₂ 38 mmHg (5.1 kPa) and HCO₃⁻ 13 mmol/L. The primary disorder is metabolic acidosis. How far is it compensated? Click your answer.
pH 7.16PaCO₂ 38 mmHg (5.1 kPa)HCO₃⁻ 13 mmol/L
1uncompensated
2partially compensated
3fully compensated
4.Medium
A practice arterial blood gas shows pH 7.50, PaCO₂ 21 mmHg (2.8 kPa) and HCO₃⁻ 16 mmol/L. The primary disorder is respiratory alkalosis. How far is it compensated? Click your answer.
pH 7.50PaCO₂ 21 mmHg (2.8 kPa)HCO₃⁻ 16 mmol/L
1uncompensated
2partially compensated
3fully compensated
5.Hard
At sea level, a practice gas taken on 24% oxygen shows PaO₂ 59 mmHg (7.9 kPa) and PaCO₂ 46 mmHg (6.1 kPa). Use PAO₂ = FiO₂·(760 − 47) − PaCO₂/0.8 to find the A–a gradient.