Drainage can be done for diagnostic or therapeutic purposes

Which of the following structures brings oxygen-depleted blood to the right atrium?

a. The right ventricle b. The pulmonary artery c. The vena cavae d. The aorta

In patients with small-airway disease breathing at higher than normal frequencies, what is likely to happen?

1. Dynamic compliance drops. 2. Oxygen consumption decreases. 3. The distribution of ventilation worsens. 4. The work of breathing increases. a. 1 and 2 only b. 1, 2, and 4 only c. 2, 3, and 4 only d. 1, 2, 3, and 4