Final answer:
The description of the pulmonary infiltrates in the given scenario is consolidation, which refers to the filling of the alveoli in the lungs with fluid, inhibiting gas exchange.
Step-by-step explanation:
The description of the pulmonary infiltrates in the given scenario is consolidation. Consolidation refers to the filling of the alveoli in the lungs with fluid, which inhibits gas exchange. This can be seen on a chest radiograph as opaque patches or areas of increased density.