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#Question id: 11086


A 17-year-old female was bicycling without a helmet when she fell and hit her head. In the emergency room, she was not conscious and was receiving ventilator assistance. Her blood gases follow:

PaO2 = 52 mm Hg,

PaCO2 = 75 mm Hg, pH = 7.15, and

HCO3− = 31 mM

The majority of the CO2 was being transported as


#Unit 7. System Physiology – Animal
  1. CO2 bound to plasma proteins
  2. CO2 bound to hemoglobin
  3. Bicarbonate ions
  4. Dissolved