For teachers: free to print, copy and use in class. Every new worksheet has new values and its own answer key. A link to ExamProblems on your course page is appreciated.
Name: ____________________ Date: ____________
1.Easy
A practice arterial blood gas shows pH 7.16, PaCO₂ 69 mmHg (9.2 kPa) and HCO₃⁻ 24 mmol/L. Which primary disorder is it? Click the cell in the grid.
pH 7.16PaCO₂ 69 mmHg (9.2 kPa)HCO₃⁻ 24 mmol/L
1respiratory acidosis
2metabolic acidosis
3respiratory alkalosis
4metabolic alkalosis
2.Easy
A practice arterial blood gas shows pH 7.28, PaCO₂ 53 mmHg (7.1 kPa) and HCO₃⁻ 24 mmol/L. Which primary disorder is it? Click the cell in the grid.
pH 7.28PaCO₂ 53 mmHg (7.1 kPa)HCO₃⁻ 24 mmol/L
1respiratory acidosis
2metabolic acidosis
3respiratory alkalosis
4metabolic alkalosis
3.Medium
A practice gas shows a metabolic acidosis with HCO₃⁻ 18 mmol/L. Use Winter’s formula to find the expected PaCO₂ (the centre of the range) in mmHg.
HCO₃⁻ 18 mmol/L
PaCO₂ = mmHg
4.Medium
A practice gas shows a metabolic acidosis with HCO₃⁻ 8 mmol/L. Use Winter’s formula to find the expected PaCO₂ (the centre of the range) in mmHg.
HCO₃⁻ 8 mmol/L
PaCO₂ = mmHg
5.Hard
A practice gas shows a metabolic acidosis: pH 7.20, PaCO₂ 21 mmHg (2.8 kPa), HCO₃⁻ 8 mmol/L. Compare the measured PaCO₂ with Winter’s formula. Click your interpretation.
pH 7.20PaCO₂ 21 mmHg (2.8 kPa)HCO₃⁻ 8 mmol/L
1appropriate compensation
2added respiratory acidosis
3added respiratory alkalosis
6.Hard
A practice gas shows pH 7.31, PaCO₂ 35 mmHg (4.7 kPa) and HCO₃⁻ 17 mmol/L, with Na⁺ 134 and Cl⁻ 85 mmol/L. Use the anion gap and the delta ratio to click the best interpretation.