A 10-year-old boy presented with right ear pain for the past day. There was no pus coming from the right ear, no hearing loss, and upon examination, the right earlobe appeared slightly red and painful to the touch. Two days ago, the patient had been swimming with friends in a river near his home. What bacteria usually cause this infection?

An 8-year-old girl presents with left ear pain that has persisted for four days. She has had a common cold a week before ear pain. An auditory examination reveals hearing impairment in her left ear. On middle ear examination with otoscope, membrane tympany is hyperemic and bulging. The most likely diagnosis is

An 8-year-old girl presents with left ear pain that has persisted for four days. She has had a common cold a week before ear pain. An auditory examination reveals hearing impairment in her left ear. On middle ear examination with otoscope, membrane tympany is hyperemic and bulging. Bacteria that most often cause this infection are

Mastoiditis is an infection of the mastoid air cells (part of the temporal bone). It is a complication of untreated or severe otitis media. Bacteria that most often cause of mastoiditis are

A patient presented to the ENT clinic complaining of a foul odor in the right side of her nose that had been present for the past five months. The patient stated that the foul odor was rare but had worsened continuously over the past two days. She also complained of pain in her right face, especially from the tip of her nose to her right cheek. The pain was particularly pronounced when she prostrated herself and when she was tired, and was persistent throughout the day. She also complained of nasal discharge that felt like it was running down her throat. The discharge was thick, yellowish, and had an odor. She sometimes felt feverish. Bacteria that most often cause of this infection are

A patient presented to the ENT clinic complaining of a foul odor in the right side of her nose that had been present for the past five months. The patient stated that the foul odor was rare but had worsened continuously over the past two days. She also complained of pain in her right face, especially from the tip of her nose to her right cheek. The pain was particularly pronounced when she prostrated herself and when she was tired, and was persistent throughout the day. She also complained of nasal discharge that felt like it was running down her throat. The discharge was thick, yellowish, and had an odor. The appropriate specimen for microbiological examination in this patient is

A 10-year-old boy presented with right ear pain for the past day. There was no pus coming from the right ear, no hearing loss, and upon examination, the right earlobe appeared slightly red and painful to the touch. Two days ago, the patient had been swimming with friends in a river near his home. The appropriate specimen for microbiological examination in this patient is

An 8-year-old girl presents with left ear pain that has persisted for four days. She has had a common cold a week before ear pain. An auditory examination reveals hearing impairment in her left ear. On middle ear examination with otoscope, membrane tympany is hyperemic and bulging. The appropriate specimen for microbiological examination in this patient is

The appropriate specimen for microbiological examination in mastoiditis infection is