A patient is diagnosed with left ear unilateral sensorineural hearing loss. During the performance of the Weber test, the nurse expects lateralization of the sound/vibration to the:
Left temporal bone
Both ears equally
Right ear
Left ear
The Correct Answer is C
Choice a reason:
The left temporal bone would be the expected site of lateralization for sound in a Weber test if the patient had conductive hearing loss in the left ear. However, with unilateral sensorineural hearing loss, the sound typically lateralizes to the opposite ear, which is the ear with better hearing.
Choice b reason:
Lateralization to both ears equally during the Weber test would suggest either normal hearing or symmetrical hearing loss. In the case of unilateral sensorineural hearing loss, the sound is not perceived as equal in both ears because the affected ear does not hear as well as the unaffected ear.
Choice c reason:
In a patient with unilateral sensorineural hearing loss in the left ear, the Weber test will lateralize to the right ear, which is the ear with normal hearing. This occurs because the inner ear on the affected side is not able to transmit the sound as effectively as the unaffected side, making the sound seem louder in the ear with better hearing.
Choice d reason:
Lateralization to the left ear in the Weber test would indicate conductive hearing loss in the left ear, not sensorineural hearing loss. In sensorineural hearing loss, the sound vibrates to the ear with better cochlear function, which would be the right ear in this case.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice a reason:
Resonance is the expected percussion note when percussing over normal, healthy lung tissue. This sound is produced due to the presence of air in the lung parenchyma, which allows for the transmission of sound waves through the air-filled spaces. In a healthy individual, the resonance indicates that the lungs are free from any significant abnormalities that could alter the sound, such as fluid or solid masses.
Choice b reason:
Tympanic notes are typically heard over hollow, air-containing structures like the stomach. This sound is not expected in lung percussion unless there is a large, air-filled cavity within the lung tissue, which would be abnormal and indicative of a pathological condition such as a pneumothorax.
Choice c reason:
A flat percussion note is usually heard over dense tissues where air is not present, such as over the thigh muscles or areas of the chest where lung tissue has been replaced by something more solid, like in the case of a pleural effusion or a lung mass.
Choice d reason:
Dullness on percussion usually indicates that the lung is not air-filled and may be suggestive of underlying conditions such as pneumonia, tumor, or atelectasis. It is a higher-pitched sound compared to flatness and is typically found in areas of the lung that are filled with fluid or solid tissue rather than air.
Correct Answer is ["A","B","C","D"]
Explanation
Choice a reason:
Wearing nonslip shoes in the house can prevent falls, which are a common cause of traumatic brain injuries (TBIs) in adolescents. Falls often occur due to slippery surfaces, and nonslip shoes provide better traction, reducing the risk of such accidents.
Choice b reason:
Supervised use of guns by an adult is crucial to prevent accidental shootings, which can result in TBIs or even more severe outcomes. Adolescents may not fully understand the risks associated with handling firearms, and adult supervision ensures that safety measures are followed.
Choice c reason:
The consistent use of seat belts in vehicles is one of the most effective ways to prevent TBIs during car accidents. Seat belts keep occupants from being ejected or hitting the interior of the car, significantly reducing the risk of head injuries.
Choice d reason:
Avoiding risky activities such as snowboarding without proper safety measures can prevent sports-related TBIs. While snowboarding, wearing a helmet and other protective gear is essential to protect the head during falls or collisions.
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