Question

which of these comes first in the progression of an uncomplicated and untreated case of lobar pneumonia?
congestion and consolidation
resolution
abscess formation
gray hepatization
red hepatization

Explanation:

In the progression of an uncomplicated and untreated case of lobar pneumonia, the first stage is congestion. This is followed by red hepatization, then gray hepatization, and finally resolution. Abscess formation is a complication and not part of the typical progression.

Answer:

Congestion and consolidation