Brief Hyperventilation to a PCO₂ of Approximately ____________ Has Been

Brief hyperventilation to a pCO₂ of approximately ____________ has been recommended to reduce intracranial pressure with a suspected brain herniation.

A) 20 mm Hg (EtCO₂ 15 to 20 mm Hg)
B) 25 mm Hg (EtCO₂ 20 to 25 mm Hg)
C) 30 mm Hg (EtCO₂ 25 to 30 mm Hg)
D) 35 mm Hg (EtCO₂ 30 to 35 mm Hg)