During an assessment of the ear structures, the nurse would expect to identify which structure as part of the middle ear?
Tympanic Membrane
Ear lobe
Cochlea
Pinna
The Correct Answer is A
Choice a reason:
The tympanic membrane, also known as the eardrum, is a critical component of the middle ear. It is a thin membrane that separates the external ear from the middle ear and vibrates in response to sound waves. These vibrations are then transmitted to the ossicles within the middle ear, which amplify and carry the sound to the inner ear.
Choice b reason:
The ear lobe is part of the external ear, not the middle ear. It is composed of soft skin and fatty tissue and does not play a role in hearing. The ear lobe serves primarily as a site for body decoration such as earrings.
Choice c reason:
The cochlea is a structure located in the inner ear. It is a spiral-shaped organ that contains the organ of Corti, the sensory organ of hearing. The cochlea converts the mechanical vibrations from the middle ear into nerve impulses that are sent to the brain.
Choice d reason:
The pinna, or auricle, is the visible part of the external ear. It is made of cartilage and skin and functions to capture sound waves and direct them into the ear canal towards the tympanic membrane.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason:
The Review of Systems (ROS) is a systematic approach for collecting the patient's self-reported data on all body systems. It is not typically where the narrative of symptoms is documented. Instead, the ROS is used to uncover symptoms the patient may not have mentioned during the initial recounting of their history.
Choice B Reason:
The Chief Complaint (CC) is a concise statement describing the symptom, problem, condition, diagnosis, or other factors that are the reason for the encounter, usually stated in the patient's words¹. While it does include the symptom prompting the visit, it is not the section where a detailed narrative or description of symptoms is provided.
Choice C Reason:
The History of Present Illness (HPI) is indeed where the detailed narrative of the patient's symptoms is documented. It includes the onset of the problem, the setting in which it developed, its manifestations, and any treatments to date. The HPI tells the story of the patient's chief complaint and provides context for the clinical reasoning process.
Choice D Reason:
The Past Medical History (PMH) includes information about the patient's past experiences with illnesses, operations, injuries, and treatments. It does not contain the current symptoms' narrative but rather the patient's health status before the present illness or concern.
Correct Answer is C
Explanation
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.
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