82A 47-year-old male has just undergone a Whipple procedure. He had been doing well, but as the nurseswere preparing his transfer to the ICU for further monitoring, he suddenly became unresponsive. Themedical team began CPR and reconnected this patient to the monitors. The respiratory therapist suggestsend-tidal CO2 monitoring. During CPR, end-tidal CO2 correlates with which one of the following?Page
(A) Arterial CO2
(B) Cardiac output
(C) Minute ventilation
(D) Arterial systolic blood pressure
(E) Venous CO2