During an acute asthma episode, a female patient arrived in ER and on room air was found to have a pH 7.25, PaCO2 71 mm Hg, PaO2 27 mmHg. What effect would these blood gases have on the oxyhemoglobin dissociation curve?

A. pH and PCO2 would shift the curve to the left
B. pH would cause left shift but PCO2 would cause right shift
C. pH and PCO2 would shift the curve to the right
D. PCO2 would cause left shift but pH would cause right shift

Answer: C