Specialism Respiratory quiz

The pressure of atmospheric air is?

• 700 mmHg

• 720 mmHg

• 760 mmHg

• 780 mmHg

If pO2 in alveolar air is 100 mmHg, what will the pO2 in arterial blood be?

• 100 mgHg

• 40 mmHg

• 120 mmHg

• 60 mmHg

What is the pCO2 in venous blood?

• 4 mmHg

• 40 mmHg

• 44 mmHg

• 46 mmHg

Haemoglobin contains 4 alpha globin chains?

• True

• False

Which will increase the affinity between haemoglobin and oxygen?

• Decrease in pH

• Decrease in body temperature

• Rise in 2,3-DPG

• All of the 3

How is the majority of CO2 is transported in the blood?

• Dissolved in plasma

• Bound to haemoglobin

• As bicarbonate ions

• Attached to albumin

Which is the enzyme that facilitates the conversion of CO2 to carbonic acid?

• Carbonic anhydrase

• Carbonates

• Carbonic hydrase

• Carbonic amylase

A rise in CO2 is the stimulus for hydroxyhaemoglobin to reduce the affinity between O2 and haemoglobin?

• True

• False