What changes would be expected in the ventilation-perfusion ratio in the presence of excessive blood loss?
A) The ventilation-perfusion ratio initially decreases will increase then will decrease dramatically.
B) The ventilation-perfusion ratio will increase.
C) The ventilation-perfusion ratio will decrease.
D) The ventilation-perfusion ratio will remain constant.

Question

Quizplus · Accepted Answer

Excessive blood loss leads to a decrease in perfusion (blood flow) relative to ventilation, causing an increase in the ventilation-perfusion ratio.

What Changes Would Be Expected in the Ventilation-Perfusion Ratio in the Presence