Overall, most cases of pneumonia are caused by:
a. viruses.
b. gram-negative bacteria.
c. protozoa.
d. fungi.
Question 2
Which portion of the pulmonary system will be affected by the inhalation of lowwater solubility gases such as hydrogen chloride and phosgene?
a. Distal airways and alveoli
b. Pulmonary vascular bed
c. Upper airway
d. Pulmonary lymphatic system