Respiratory Physiology 3

1. Name the pressure that indicates the difference between intralveolar and intrapleural pressure

Transpulmonary pressure

2. Name the condition due to deficiency of surfactant in newborn babies

Respiratory distress syndrome (RDS)

3. Name the manoeuvre used to rescue a person choking with foreign body obstructing the upper airways

Heimlich manoeuvre

4. In a normal healthy person, why is the physiological dead space equals the anatomical dead space?

All the respiratory alveoli are functional

5. Which volume of ventilation is called wasted ventilation?

Dead space air

6. What is the normal volume of anatomical dead-space air?

150 ml

7. What is the normal atmospheric PO2 at sea level?

160 mm Hg

8. What is the normal PO2 in venous blood?

46 mm Hg

9. What is the normal PO2 in alveoli?

40 mm Hg

10. Between oxygen and carbon monoxide, which has a greater affinity for haemoglobin and how much?

Carbon monoxide, 210 times more affinity

11. What is the major form of carbon dioxide transport in the blood?

Bicarbonate form

12. What is the effect of a slight increase in temperature on oxygen dissociation curve?

The curve shifts to the right

13. When we say the oxygen dissociation curve shifts to the right. What does it signify?

Unloading of oxygen

14. Increased pH shifts the oxygen dissociation curve to the left. Is this statement true or false?

True

15. Formation of bicarbonate results in the influx of minus ion chloride into the RBC. What is this phenomenon called?

Chloride shift

 ( UMS, 2008 )