举一反三
- 6. Partial pressure of arterial blood oxygen refers to A: Oxygen partial pressure when oxygen saturation of hemoglobin is 50% B: Tension caused by oxygen molecules dissolved in arterial blood C: Hemoglobin and oxygen binding capacity D: The actual number of milliliters containing 02 in 100ml of blood E: Tension created by chemically bound oxygen in the blood
- Partial pressure of arterial blood oxygen refers to ( ) A: Tension caused by oxygen molecules dissolved in arterial blood B: Oxygen partial pressure when oxygen saturation of hemoglobin is 50% C: Hemoglobin and oxygen binding capacity D: The actual number of milliliters containing 02 in 100ml of blood E: Tension created by chemically bound oxygen in the blood
- 2. When isotonic hypoxemia occurs A: Reduced blood oxygen content B: Decreased partial pressure of arterial blood oxygen C: Decreased oxygen saturation of hemoglobin D: Normal blood oxygen content E: Tissue cell utilization oxygen disorder
- The iron-containing pigment in red blood cells that carries oxygen is called
- Which of the following is not the clinical features of severe COVID 19? () A: The high fever persists B: Respiratory distress, RR≥30 times / min C: Oxygen saturation≤93% at rest D: Arterial partial pressure of oxygen (PaO2) / concentration of oxygen<br/>(FiO2) ≤ 300mmHg E: Lung imaging showed that the lesion progressed to > 50% within<br/>24-48 hours
内容
- 0
In a cardiac cycle, the average value of arterial blood pressure is<br/>called () A: Systolic pressure B: Diastolic pressure C: Pulse pressure D: Mean arterial pressure E: Central venous pressure
- 1
Hypotonic hypoxemia causes tissue hypoxia and its arterial blood<br/>oxygen partial pressure must be lower than () A: 12.0<br/>kPa, 90mmHg B: 10.7<br/>kPa, 80mmHg C: 9.3<br/>kPa, 70mmHg D: 8.0<br/>kPa, 60mmHg E: 6.7<br/>kPa, 50mmHg
- 2
CO can cause a shift of the oxygen dissociation curve to left. At the apex of the lung, the arterial pressure is higher than alveolar pressure.
- 3
Where is the highest partial pressure of carbon dioxide in the body A: Venous blood B: capillary blood C: arterial blood D: interstitial fluid E: intracellular fluid
- 4
The reliable variables reflecting tissue perfusion are () A: Central venous pressure B: Mean arterial pressure C: Systemic vascular resistance D: Venous oxygen saturation E: Pulmonary capillary wedge pressure