Final answer:
Bullous myringitis is the expected condition in a patient with mycoplasma pneumonia infection showing small vesicles with blood on the eardrum, distinguishing it from otitis externa, swimmer's ear, and other ear infections.
Step-by-step explanation:
The condition that the nurse would expect to find in a patient with mycoplasma pneumonia infection who has small vesicles filled with blood on the eardrum is Bullous myringitis. Bullous myringitis is a type of ear infection where the eardrum (tympanic membrane) becomes inflamed and develops blisters filled with blood or other fluids. This condition can be associated with various types of respiratory infections, including those caused by Mycoplasma pneumoniae. It's distinct from other ear conditions like otitis externa, also known as swimmer's ear, which affects the external ear canal and is commonly caused by Pseudomonas aeruginosa. Otitis externa often presents with itching, redness, and discomfort rather than blisters on the eardrum.