Question 170 · LEK · Respiratory failure
Please indicate the results of arterial blood gases measurement corresponding to the exacerbation of chronic hypercapnic respiratory failure:
- A. pH 7.32; PaCO₂ 60.4 mmHg; PaO₂ 43.8 mmHg; HCO₃ 31.6 mmol/l; SaO₂ 75.5%.
- B. pH 7.15; PaCO₂ 80.6 mmHg; PaO₂ 24.1 mmHg; HCO₃ 16.3 mmol/l; SaO₂ 51%.
- C. pH 7.38; PaCO₂ 59.6 mmHg; PaO₂ 49.1 mmHg; HCO₃ 38 mmol/l; SaO₂ 80.1%.
- D. pH 7.47; PaCO₂ 31 mmHg; PaO₂ 60.1;mmHg; HCO₃ 21.1 mmol/l; SaO₂ 92.8%.
- E. pH 7.42 PaCO₂ 41 mmHg; PaO₂ 51.6 mmHg; HCO₃ 22.6 mmol/l; SaO₂ 85.2%.
Hint
Chronic hypercapnia raises bicarbonate; an exacerbation adds an acute CO2 rise that the kidneys have not yet compensated.
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Internal medicine
- Which of the following concerning autosomal dominant polycystic kidney disease (ADPKD) is true?
- A 28-year-old man complains about bloating after intake of dairy products for the last 5 years. Which of the following is the most appropriate…
- A 47-year-old woman comes to the office because of weight gain of 10 kg during the last 6 weeks. She is hungry all the time. Sometimes she does not…
- The choice of the drugs in COPD patients depends on:
- In the acute phase of pulmonary embolism the following can be used except for:
- The first episode of reactive arthritis should be treated with: