What Is Chronic Ventilatory Failure

Question 1

In ABG of chronic Ventilatory failure would expect to see

Answer 1

Elevated PCO2, low PO2, normal blood pH and elevated bicarbonate

Question 2

In ABG of acute Ventilatory failure would expect to see

Answer 2

Low pH, elevated bicarbonate

Question 3

Why does chronic Ventilatory failure manifest During sleep

Answer 3

Skeletal muscle inactivation —> no accessory muscle use —> dyspnoea