This portion of the nasal cavity contains coarse hairs thailter out particles

What is the clinically safest available dilution of vasoconstrictor with lidocaine?

A) 1:50,000 B) 1:100,000 C) 1:200,000 D) 1:1,000,000

For a given transpulmonary pressure gradient and inflation time, which of the following lung units would exhibit the greatest change in volume?

a. A unit with high resistance and low com-pliance b. A unit with high resistance and normal compliance c. A unit with normal resistance and low compliance d. A unit with normal resistance and normal compliance