It is the waveform produced from capnography.Ī rapid, continuous, noninvasive monitoring and graphic display of the patient’s inhaled and exhaled CO2 plotted against time.Ģ4. It will remain at zero if esophageal intubation or in cardiac arrest. It will increase with hypoventilation and decreases with hyperventilation. NThe normal range is 35 – 40 mmHg or about 5%. Under normal conditions, what is the respiratory exchange ratio equal to? The quantity of oxygen and carbon dioxide exchanged during a period of 1 minute.ġ7. What is the respiratory exchange ratio defined as? What is the average respiratory quotient?ġ6.

The ratio between the volume of oxygen consumed and the volume of carbon dioxide produced.ġ5. What is the meaning of respiratory quotient? It is the relationship of the overall alveolar ventilation (L/min) to the overall pulmonary blood flow (L/min). When the VQ ratio increases, what happens to PAO2 and PACO2 levels? When the VQ ratio decreases, what happens to PAO2 and PACO2 levels?ġ1. What would be the effect on PACO2 with an obstructed airway?ġ0. What would be the effect on PAO2 with an obstructed airway?ĩ. What would be the effect on VQ ratio which an obstructed airway?Ĩ.

What is the VQ ratio in the lower lung?ħ.

Dead spacing in the lungs