7. Likely consequences of breathing 100% oxygen at

[Editor]

7. Likely consequences of breathing 100% oxygen at 3 atmospheres absolute for long periods include:
a. convulsions
b. ‘the bends’
c. damage to alveolar membranes
d. an increase in the oxygen carrying capacity of haemoglobin of 50 per cent
e. an alveolar partial pressure of oxygen of more than 240kPa 1800 mm Hg)

[sachin]

Originally Posted by Anaesthesia Editor

7. Likely consequences of breathing 100% oxygen at 3 atmospheres absolute for long periods include:
a. convulsions
b. ‘the bends’
c. damage to alveolar membranes
d. an increase in the oxygen carrying capacity of haemoglobin of 50 per cent
e. an alveolar partial pressure of oxygen of more than 240kPa 1800 mm Hg)

Answers:
a:T
b:F : seen in decompression sickness
c:T
d:F : Oxygen carrying capacity is a fixed value ( with Hb)
eK

[jijindr]

Alveolar gas equation: PAo2= PIo2- PAco2/R
Pio2= 300Kpa- 6.3Kpa( SVP of water vapour)
PAo2= 293.7-5.0/1 = 287.8KPa
so, e) True