Question 1

During an interview, the patient states he has the sensation that "everything around him is spinning." What part of the ear should the nurse recognize is responsible for this sensation?

Accepted Answer

If the labyrinth of the ear becomes inflamed, it feeds the wrong information to the brain, creating a staggering gait and a strong, spinning, whirling sensation called vertigo. The cochlea, which contains the central hearing apparatus, and cranial nerve VIII, the vestibulocochlear nerve, which conducts nerve impulses from the organ of Corti to the brain, are all involved with hearing. The spinning sensation that this patient is experiencing is from the labyrinth of the ear.

Question 2

The nurse is taking the history of a patient who may have a perforated eardrum. What would be an important question in this situation?

Accepted Answer

Typically with perforation, ear pain occurs first and resolves after a popping sensation, then drainage occurs.

Question 3

In performing a voice test to assess hearing, which of these actions would the nurse perform?

Accepted Answer

With the examiner's head 30 to 60 cm (1 to 2 feet) from the patient's ear, have the patient place one finger on the tragus of the ear and push it in and out of the auditory meatus. While the patient is doing this, the examiner exhales and slowly whispers a set of random numbers and letters, such as "5, B, 6." Normally the patient is asked to repeat each number and letter correctly after hearing the examiner say them. Shielding the lips to muffle the sound, asking the patient to place a finger in their ear to occlude outside noise, and the examiner standing 4 feet away from the patient are not techniques used to perform the voice test. The voice test is performed with the examiner's head 30 to 60 cm (1 to 2 feet) from the patient's ear and having the patient place one finger on the tragus of the ear and push it in and out of the auditory meatus. While the patient is doing this, the examiner exhales and slowly whispers a set of random numbers and letters, such as "5, B, 6." Normally, the patient is asked to repeat each number and letter correctly after hearing the examiner say them and then exhaling and slowly whispering a set of random numbers and letters, such as "5, B, 6." Normally the patient is asked to repeat each number and letter correctly after hearing the examiner say them.

Question 4

How should the nurse perform an examination of a 2-year-old child with a suspected ear infection?

Accepted Answer

In addition to its place in the complete examination, eardrum assessment is mandatory for any infant or child requiring care for an illness or fever. For the infant or young child, the timing of the otoscopic examination is best toward the end of the complete examination because many young children protest vigorously during this procedure and it is difficult to re-establish cooperation afterward. When performing an ear examination on a 2-year-old child, with or without a suspected ear infection, the pinna should be pulled down (not up) and back. In addition to its place in the complete examination, eardrum assessment is mandatory for any infant or child requiring care for an illness or fever, so should not be omitted. Rather than asking the parent to leave the room, the nurse should enlist the parent's help in holding the child to protect the eardrum from injury.

Question 5

A 31-year-old patient tells the nurse that he has noticed a progressive loss in his hearing. He says that it does seem to help when people speak louder or if he turns up the volume of a television or radio. What is the most likely cause of this hearing loss?

Accepted Answer

Otosclerosis is a common cause of conductive hearing loss in young adults between the ages of 20 and 40 years. Presbycusis is a type of hearing loss that occurs with aging. Trauma and frequent ear infections are not a likely cause of his hearing loss. Instead, a common cause of conductive hearing loss (mechanical dysfunction of the external or middle ear which causes partial hearing loss that can be compensated for with an increase in amplitude) in young adults between the ages of 20 and 40 years is otosclerosis.

Question 6

The nurse is performing an otoscopic examination on an adult. Which of these actions is correct?

Accepted Answer

The pinna is pulled up and back on an adult or older child, which helps straighten the S-shape of the canal. Traction should not be released on the ear until the examination is completed and the otoscope is removed. The nurse should tilt the patient's head slightly away from them and toward the opposite shoulder, not forward. The traction on the pinna of the ear should not be released until the examination is finished and the otoscope has been removed. The largest speculum that fits comfortably in the ear, not the smallest, should be used. The correct action is to pull the pinna up and back on an adult or older child (down and back on an infant or child under the age of 3), which helps straighten the S-shape of the canal.

Question 7

While discussing the history of a 6-month-old infant, the mother tells the nurse that she took a significant amount of aspirin while she was pregnant. What question would the nurse want to include in the history?

Accepted Answer

Children exposed in utero to a variety of conditions, such as maternal rubella or to maternal ototoxic drugs are at risk for hearing deficits. Aspirin can be ototoxic, so the nurse should ask if the baby seems to startle with loud noises.

Question 8

The nurse is preparing to perform an otoscopic examination of a newborn infant. Which statement is true regarding this examination?

Accepted Answer

During the first few days after the birth, the tympanic membrane of a newborn often appears thickened and opaque. It may look injected and have a mild redness from increased vascularity. The eardrum of a neonated is more horizontal, making it more difficult to see completely. By one month of age the drum is in the oblique (more vertical) position as in the adult. During the first few days after the birth, the tympanic membrane of a newborn often appears thickened and opaque. It may look injected and have a mild redness from increased vascularity, but it is not due to infection. The eardrum of a neonated is more horizontal (not oblique), making it more difficult to see completely. By one month of age the drum is in the oblique (more vertical) position as in the adult.

Question 9

A 31-year-old patient tells the nurse that he has noticed pain in his left ear when people speak loudly to him. What does this finding indicate?

Accepted Answer

Recruitment is significant hearing loss occurring when speech is at low intensity, but sound actually becomes painful when the speaker repeats at a louder volume. The other responses are not correct. A cerumen impaction and ear infection do not cause these symptoms and these are not normal findings. Instead, this patient's symptoms are a characteristic of recruitment.

Question 10

The nurse is examining a patient's ears and notices cerumen in the external canal. Which of these statements about cerumen is correct?

Accepted Answer

The ear is lined with glands that secrete cerumen. Cerumen is genetically determined, with two distinct types. Wet, honey-brown occurs in Caucasians and African Americans, and a dry, flaky white is found in East Asians and American Indians. Cerumen is supposed to be present-to lubricate, waterproof, and clean the external auditory canal. It also is antibacterial, and traps foreign bodies. Wet, honey-colored cerumen is not a sign of infection. Cerumen is not a sign of poor hygiene. It is supposed to be present-to lubricate, waterproof, and clean the external auditory canal. It also is antibacterial, and traps foreign bodies. It is not necessary for transmitting sound through the auditory canal and too much cerumen can impair hearing.

Question 11

The nurse is assessing a patient who may have hearing loss. Which of these statements is true concerning air conduction?

Accepted Answer

The normal pathway of hearing is air conduction, which starts when sound waves produce vibrations on the tympanic membrane. Conductive hearing loss results from a mechanical dysfunction of the external or middle ear. The other statements are not true concerning air conduction. The frequency of sound waves is what determines pitch, not the amplitude. Vibrations of the bones in the skull are bone conduction, not air conduction. Conductive hearing loss involves mechanical dysfunction of the external or middle ear and is caused by impacted cerumen, foreign bodies, a perforated tympanic membrane, pus or serum in the middle ear, and otosclerosis, not loss of air conduction.

Question 12

The mother of a 2-year-old is concerned because her son has had three ear infections in the past year. What would be an appropriate response by the nurse?

Accepted Answer

The infant's eustachian tube is relatively shorter and wider than the adult's eustachian tube, and its position is more horizontal; consequently, pathogens from the nasopharynx can more easily migrate through to the middle ear. The other responses are not appropriate. It is not unusual for a small child to have frequent ear infections, thus, it is not necessary to check the immune system. The reason that ear infections in infants and toddlers is not uncommon is not due to more cerumen but because the infant's eustachian tubes are relatively shorter and wider than the adult's eustachian tube, and its position is more horizontal; consequently, pathogens from the nasopharynx can more easily migrate through to the middle ear.

Question 13

The nurse is assessing a 16-year-old patient who has suffered head injuries from a recent motor vehicle accident. Which of these statements indicates the most important reason for assessing for any drainage from the ear canal?

Accepted Answer

Frank blood or clear watery drainage (cerebrospinal fluid) after a trauma suggests a basal skull fracture and warrants immediate referral. Purulent drainage indicates otitis externa or otitis media. An ear canal occluded from cerumen would not be draining, purulent drainage indicates otitis externa or otitis media, and it is not likely a foreign body from an accident would cause occlusion of the ear canal.

Question 14

A 70-year-old patient tells the nurse that he has noticed that he is having trouble hearing, especially in large groups. He says "I can't always tell where the sound is coming from" and that the words often sound "mixed up." What might the nurse suspect as the cause for this change?

Accepted Answer

Presbycusis is a type of hearing loss that occurs in 60% of those older than 65 years of age, even in those living in a quiet environment. This sensorineural loss is gradual and caused by nerve degeneration in the inner ear. Words sound garbled, and the ability to localize sound is also impaired. This communication dysfunction is accentuated when background noise is present. Atrophy of the apocrine glands causes cerumen to be more dry and cilia becoming coarse and stiff may cause cerumen to accumulate and oxidize and reduce hearing but they do cause this patient's symptoms of not being able to locate the source of sounds or sounds being mixed up. Scarring of the tympanic eardrum are sequelae of repeated ear infections but do not necessarily affect hearing.

Question 15

The nurse is reviewing the function of the cranial nerves (CNs). Which CN is responsible for conducting nerve impulses to the brain from the organ of Corti?

Accepted Answer

The nerve impulses are conducted by the auditory portion of CN VIII to the brain. Cranial nerve I, the olfactory nerve, is responsible for the sense of smell. Cranial nerve III, the oculomotor, innervates the superior, inferior, and medial rectus and the inferior oblique muscles of the eye. Cranial nerve XI, the accessory nerve, controls the muscles of the neck. The nerve that conducts nerve impulses from the organ of Corti to the brain is CN VIII, the vestibulocochlear nerve.

Question 16

During an assessment of a 20-year-old Asian patient, the nurse notices that he has dry, flaky, white cerumen in his canal. What is the significance of this finding?

Accepted Answer

Asians and American Indians are more likely to have dry cerumen, which appears white and flaky, whereas blacks and whites usually have wet cerumen that appears honey-brown. Dry, flaky cerumen in an Asian patient is not a result of poor hygiene, lesions from eczema, or change in cilia.

Question 17

When examining the ear with an otoscope, how should the tympanic membrane look?

Accepted Answer

The tympanic membrane is a translucent membrane with a pearly gray color and a prominent cone of light in the anteroinferior quadrant, which is the reflection of the otoscope light. The tympanic membrane is oval and slightly concave, pulled in at its center by the malleus, which is one of the middle ear ossicles. A light pink color and a slight bulge of the tympanic membrane indicate otitis media. It should not look white and if there are tiny black flecks or dots, that is indicative of a fungal infection, or otomycosis. The tympanic membrane does not appear pulled in at the base of the cone of light, but should instead appear flat and slightly pulled in at the center. A normal tympanic membrane should appear a pearly gray color and have a prominent cone of light in the anteroinferior quadrant, which is the reflection of the otoscope light. The tympanic membrane is oval and slightly concave, pulled in at its center by the malleus, which is one of the middle ear ossicles.

Question 18

A patient in her first trimester of pregnancy is diagnosed with rubella. Which of these statements is correct regarding the significance of this in relation to the infant's hearing?

Accepted Answer

If maternal rubella infection occurs during the first trimester, then it can damage the organ of Corti and impair hearing. Maternal rubella can affect the infant's hearing, not the mother's hearing, if it occurs in the first trimester of pregnancy. Hearing is impaired due to damage to the organ of Corti, not cranial nerve VIII. Rubella does not impair the development of cranial nerve VIII.

Question 19

A patient with a middle ear infection asks the nurse, "What does the middle ear do?" Which is the best response by the nurse?

Accepted Answer

Among its other functions, the middle ear conducts sound vibrations from the outer ear to the central hearing apparatus in the inner ear. The other responses are not functions of the middle ear. The inner ear, not the middle ear, helps with balance. Sound is interpreted in the cerebral cortex, not the middle ear. The middle ear reduces the amplitude of loud sounds, not increase them, to protect the inner year. The functions of the middle ear are to conduct sound vibrations from the outer ear to the central hearing apparatus in the inner ear; protect the inner ear by reducing the amplitude of loud sounds; and allow equalization of air pressure on each side of the tympanic membrane via the eustachian tubes so that the membrane does not rupture.

Question 20

A patient has been identified as having a sensorineural hearing loss. What would be important for the nurse to do during the assessment of this patient?

Accepted Answer

Sensorineural hearing loss may be caused by presbycusis, which is a gradual nerve degeneration that occurs with aging and by ototoxic drugs, which affect the hair cells in the cochlea. So the nurse should ask the patients about the medications they have been taking. A simple increase in amplitude may not enable the person to understand spoken words. The middle ear and obstruction of the external ear are not associated with sensorineural hearing loss so the nurse should not assess for a middle ear infection or external ear obstruction.

Quiz 16: Ears