Final answer:
In a peritonsillar abscess, expected symptoms are 'hot potato' voice, odynophagia, and trismus, but not bilateral swelling, as this condition usually causes unilateral throat swelling.
Step-by-step explanation:
The symptoms expected in a patient with a peritonsillar abscess include 'hot potato' voice, odynophagia (pain with swallowing), and trismus (difficulty opening the mouth). However, bilateral swelling is not typically seen in peritonsillar abscesses; usually, the swelling is unilateral, affecting only one side of the throat. This is in contrast to conditions like mumps, which can cause bilateral swelling of the parotid glands.