PG NEXT Question of the Day 29-10-2016
Identify the respiratory pattern shown below
a. Cheyne stokes breathing
b. Shallow breathing
c. Normal breathing
d. Medullary breathing
Answer: a. Cheyne stokes breathing
It is mostly seen in patients with congestive heart failure and uremia. In these individuals CO2 causes relative hyperventilation lowering the arterial PCO2. During the resultant apnoea, the arterial PCO2 again rises to normal but the respiratory mechanism again over responds to CO2. Breathing ceases and the cycle repeats.