Biochemistry MCQ 003

21. Life threatening metabolic acidosis is characterized by:
1. pH less than 7,20
2. Plasma bicarbonate ions concentration is less then 10 mmol/l
3. Plasma bicarbonate ions concentration is less then 20 mmol/l
4. pH less than 7,35
5. pH less than 7,30
22. Life threatening partial pressure of oxygen in arterial blood is:
1. Less than 60 mm Hg
2. Less than 40 mm Hg
3. Less than 50 mm Hg
4. Less than 70 mm Hg
5. Less than 80 mm Hg
23. Reference values of pCO2 in arterial blood are:
1. 25-35 mm Hg
2. 35-45 mm Hg
3. 45-55 mm Hg
4. 55-65 mm Hg
5. 65-85 mm Hg
24. Life threatening values of pCO2 are above:
1. 40 mm Hg
2. 45 mm Hg
3. 60 mm Hg
4. 55 mm Hg
5. 50 mm Hg
25. Life threatening plasma bicarbonate ions concentration is less than:
1. 20 mmol/l
2. 15 mmol/l
3. 10 mmol/l
4. 25 mmol/l
5. 30 mmol/l
26. Life threatening values of plasma lactate are above:
1. 6 mmol/l
2. 5 mmol/l
3. 4 mmol/l
4. 3 mmol/l
5. 2,5 mmol/l
27. Parameter D(A-a)pO2 reflects:
1. Intrapulmonary shunting
2. Alveolar to arterial oxygen gradient
3. Partial pressure of oxygen in mixed venous blood
4. Partial pressure of oxygen in arterial blood
28. Parameter D(a-v)pO2 reflects:
1. Intrapulmonary shunting
2. Alveolar to arterial oxygen gradient
3. Arterial to venous oxygen gradient
4. Partial pressure of oxygen in arterial blood
29. pH=7,22; pCO2=61 mm Hg; bicarbonate=23 mmol/l; BE= -1,2 mmol/l. This
acid-base laboratory analysis is typical for:
1. Non-compensated metabolic acidosis
2. Non- compensated respiratory acidosis
3. Respiratory alkalosis and metabolic acidosis
4. Metabolic alkalosis and respiratory acidosis
30. pH=7,1; pCO2=66 mm Hg; bicarbonate=13 mmol/l; BE= -13 mmol/l. This
acid-base laboratory analysis is typical for:
1. Non-compensated metabolic acidosis
2. Non-compensated respiratory acidosis
3. Respiratory acidosis and metabolic acidosis
4. Metabolic alkalosis and respiratory acidosis