Ch 30 potter health assessment and physical exam Flashcards
3 types of hearing loss are
conduction, sensorineural, and mixed
interrupts sound waves as they travel from the outer ear to the cochlea of the inner ear because the sound waves are not transmitted through the outer and middle ear structures
conduction loss
include swelling of the auditory canal and tears in the tympanic membrane
Causes of a conduction loss
involves the inner ear, auditory nerve, or hearing center of the brain. Sound is conducted through the outer and middle ear structures, but the continued transmission of sound becomes interrupted at some point beyond the bony ossicles
-becomes interrupted beyond bony ossicle
sensorineural loss
involves a combination of conduction and sensorineural loss
mixed loss
experience an inability to hear high-frequency sounds and consonants (e.g., S, Z, T, and G)
Older adults
risk for hearing loss caused by ototoxicity (injury to auditory nerve) resulting from high maintenance doses of antibiotics (e.g., aminoglycosides).
ototoxicity
allows for comparison of hearing by bone conduction with that of air conduction
-256 to 512 hertz (Hz) commonly used
tuning fork
are irregularly shaped, elevated areas of superficial localized edema that vary in size
Wheals
are palpable, circumscribed, solid elevations in the skin that are smaller than 1 cm
Papules
are elevations of skin similar to
vesicles, but they are filled with pus and vary in size like acne.
Pustules
are circumscribed, elevated skin lesions filled with serous fluid that measure less than 1 cm
Vesicles
abnormal drooping of the lid over the pupil is
called
ptosis
can lead to lashes of the lids irritating the conjunctiva and cornea
entropion
is a bulging of the eyes and usually indicates hyperthyroidism
Exophthalmos