Hearing Flashcards
With regards to the type of associated hearing loss, which of the following conditions is least related?
A. Aural atresia
B. Otosclerosis
C. Pendred’s syndrome
D. Tympanic membrane perforation
C
Explanation: Pendred’s syndrome is the only one among the choices that presents with sensorineural hearing loss; the rest are cases of conductive hearing loss due to either failure of development of the ear canal or modifications resulting from damage or insult to it.
What tuning fork test result do you expect to have in a patient with a perforated left eardrum?
A. Weber lateralizes to the right, Rinne AC greater than BC right, AC less than BC left
B. Weber lateralizes to the left, Rinne AC greater than BC right, AC less than BC left
C. Weber lateralizes to the right, Rinne AC less than BC right, AC greater than BC left
D. Weber lateralizes to the left, Rinne AC less than BC right, AC greater than BC left
B
A perforated left eardrum means conductive hearing loss on that side. The sound would thus lateralize to the affected ear (as opposed to a case of sensorineural hearing loss where the sound would lateralize to the good ear since the bad ear wouldn’t be able to pick up the vibrations.) For the Rinne test, bone conduction (BC) should be greater than air conduction
(AC) if the left eardrum is perforated. Recall that AC > BC in normal cases.
Ear pruritis would be the most prominent symptom of which of the following conditions?
A. Acute otitis externa
B. Chronic suppurative otitis media
C. Otomycosis
D. Cholesteatoma
C
Which of the following conditions would often present with a mixed type of hearing loss?
A. Serous otitis media
B. Noise-induced hearing loss
C. Meniere’s disease
D. Chronic suppurative otitis media
D
According to WebMD, “Mixed hearing loss can be caused by a head injury, chronic infection, or an inherited disorder.”
The ________ are most susceptible to damage in noise-induced hearing loss
A. Inner hair cells
B. Supporting cells
C. Tectorial membrane
D. Outer hair cells
D
40/M has chronic otitis media AD with foul discharge and right lateral rectal palsy. Initial impression will be:
A. Nasopharyngeal carcinoma
B. Petrous apicitis
C. Suppurative labyrinthitis
D. Lateral sinus thrombophlebitis
B
Partial or complete ossification of the cochlea would most likely be a sequelae of:
A. Bacterial labyrinthitis
B. Rubella
C. Acute otitis media
D. Otosclerosis
A
The following drugs are known to be ototoxic except for
A. Kanamycin
B. Ofloxacin
C. Carboplatin
D. Aspirin
B
A patient with chronic suppurative otitis media will have a type ____ tympanic membrane
A. As
B. Ad
C. B
D. C
C
Among the organisms listed below, the organism least likely to be a possible causative agent for otitis media is
A. Streptococcus pneumoniae
B. Staphylococcus aureus
C. Pseudomonas aeruginosa
D. Klebsielle pneumonia
B
According to Medscape, “the most common bacterial pathogen in AOM is
Streptococcus pneumoniae… In infants younger than 6 weeks, gram-negative bacilli (e.g. E. coli,
Klebsiella species, and P. aerugonosa).
A squamous epithelium-lined cyst containing keratinaceous debris and occurring within the middle ear is:
A. Cholesterol granuloma
B. Cholesterolosis
C. Cholesteatoma
D. Steatocystoma
C
Right tympanic membrane perforation will show
a. Weber right, Rinne AC greater than BC at right and AC less than BC at left
b. Weber left, Rinne AC greater than BC at right and AC less than BC at left
c. Weber right, Rinne AC less than BC at right and AC greater than BC left
d. Weber left, Rinne AC less than BC at right and AC greater than BC at left
C
