A malfunctioning pacemaker generator replaced to produce continuous pacing is called

Which of the following factors cause the isothermic saturation boundary (ISB) to shift farther down into the airways?

1. Decreased ambient temperature 2. Increased tidal volume (VT) 3. Endotracheal intubation a. 1 and 2 only b. 2 and 3 only c. 1 and 3 only d. 1, 2, and 3

Consider the following proportional relationship: x = ay/bd. Assuming all other quantities remain constant, what happens to the value of x when d decreases?

a. increases b. decreases c. remains the same d. cannot be determined