Blood Gas Physiology

Question 1

What pH do the bodies physiological process work best at?

Answer 1

7.35-7.45

Question 2

Most important extracellular buffer?

Answer 2

CO2+H20 HC3O+ H+

Question 3

What can pH be altered by?

Answer 3

Accumulation or loss of CO2 and bicarbonate (HCO3)

Question 4

Compensation definition?

Answer 4

The body will endeavour to correct a pH balance

Question 5

Respiratory Acidosis?

Answer 5

Accumulation of CO2 due to a disease of the lungs or a problem with the mechanics of respiration

Question 6

Metabolic Acidosis?

Answer 6

Excess of H+ ions produced by body due to disease

Question 7

Metabolic Alkalosis cause?

Answer 7

Usually due to net loss of acid from the body leaving an alkali surplus

Question 8

Reaction of body to metabolic alkalosis?

Answer 8

To counteract the relative surplus of alkali the body tries to hold onto acid by hypoventilating and retaining CO2

Question 9

Respiratory Alkalosis cause?

Answer 9

Due to a relative lack of acid because of loss of CO2

Arises due to hyperventilation

Question 10

Reaction of body to respiratory alkalosis?

Answer 10

Loss of HCO3

this is a slow process

Question 11

Factors to think about?

Answer 11

pH, PaO2, PaCO2, BE