A Patient with an Acute Attack of Asthma Comes to the Emergency

A patient with an acute attack of asthma comes to the emergency department,where blood is drawn for ABGs.The nurse determines the patient is in the early phase of the attack,based on which of the following ABG results?

A) pH 7.0,PaCO₂ 50 mm Hg,and PaO₂ 74 mm Hg
B) pH 7.4,PaCO₂ 32 mm Hg,and PaO₂ 70 mm Hg
C) pH 7.36,PaCO₂ 40 mm Hg,and PaO₂ 80 mm Hg
D) pH 7.32,PaCO₂ 58 mm Hg,and PaO₂ 60 mm Hg