Which of the following aerosols would have the highest rate of deposition by diffusion?
a. MMAD of 0.1 µm
b. MMAD of 3.0 µm
c. MMAD of 10.0 µm
d. MMAD of 50.0 µm
ANS: A
Particles smaller than 0.5 µm have a greater retention rate in the lungs.
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What is the optimal PEEP level given the following information?
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When approaching a water rescue scene, it is better to drive through moving water than through stagnant water.
a. true b. false