ears

Question 1

a caloric test
+
nystagmus does not occur

Answer 1

Positive

The caloric test is useful in testing the function of cranial nerve VIII. Water that is warmer or cooler than body temperature is infused into the ear. A normal response is demonstrated by the onset of vertigo (spinning sensation) and nystagmus (involuntary eye movements) within 20 to 30 seconds. No nystagmus indicates dysfunction of cranial nerve VIII.

Question 2

Conductive
Sensorineural
Other(mixed type)

Answer 2

Hearing Loss

Question 3

Infections (External Otitis); Furuncle (abcess), carbuncle
Impacted Cerum
Masses
Trauma

Answer 3

External Ear Disorders

Question 4

Infection
Otosclerosis
Trauma

Answer 4

Middle Ear Disorders (Tympanic Membrane, Mastoid)

Question 5

is an age-related change in which progressive hearing loss is caused by loss of hair cells and decreased blood supplying the ear. This results in the loss of hearing high-pitched sounds (pitch = cycles per second; loudness = decibels). Because the ability to hear pitch, rather than volume, is lost, it is not helpful to talk louder to a patient with this type of hearing loss. In fact, talking louder can make it more difficult to discriminate sounds. Loss of high-pitched hearing causes the older adult to hear distracting background noises more clearly than conversation.

Answer 5

Presbycusis