What would happen to partial pressures of oxygen and carbon dioxide in the blood if a person cannot ventilate?

Answer 1

By not ventilating, I assume you mean they are apenic (not breathing). (Ventilation in medcine is the lung's ability to remove CO2 from the blood as a waste gas while oxygenation is the ability of the lungs to recharge hemoglobin with O2.)

If one is apenic the pCO2 (partial pressure of CO2) will rise (base line is 40 mmHg) while the pO2 (partial pressure of O2) wll fall (normally around 100 mmHg) in an arterial blood sample.

Answer 2

because the body is continually burning glucose contained in the cells for means with oxygen to produce carbon dioxide and water, you would possibly want to assume the oxygen factor to bypass down and carbon dioxide to bypass up.

Answer 3

Since the body is constantly burning glucose in the cells for energy with oxygen to produce carbon dioxide and water, you would expect the oxygen level to go down and carbon dioxide to go up.