Accumulation of endolymph causing distention and increased pressure within the membranous labyrinth with destruction of sensory cells in the ampulla and cochlea is

1. A

   Osteosclerosis.

2. B

   Hordeolum.

3. C

   Otitis media.

4. D

   Meniere's disease.

Appeared in: ESIC Nursing Officer - 2019 (Shift-2)

Explanation

• Meniere's disease is defined by endolymphatic hydrops, which is the excessive accumulation of endolymph fluid in the inner ear's membranous labyrinth.
• This fluid buildup increases pressure, causing distention and damage to the sensory hair cells within the cochlea (for hearing) and the vestibular apparatus (for balance).
• The question's description of endolymph accumulation, increased pressure, and destruction of sensory cells in the cochlea and ampulla is the classic pathophysiology of Meniere's disease.
• This process directly leads to the hallmark symptoms of vertigo, hearing loss, and tinnitus.

Why Other Options Were Wrong

• Option A: Osteosclerosis is an incorrect term in this context. The similar-sounding condition, Otosclerosis, involves abnormal bone remodeling in the middle ear, primarily affecting the stapes. This leads to conductive hearing loss, not a fluid pressure issue in the inner ear.
• Option B: A hordeolum, or stye, is an acute infection of a gland in the eyelid. It is an ophthalmologic condition, completely unrelated to the ear.
• Option C: Otitis media is an infection or inflammation of the middle ear. While it can affect hearing, it causes conductive hearing loss and is associated with pain and sometimes fluid buildup behind the eardrum, not within the inner ear's labyrinth.

Related Visual

• Visual 1: Diagram: A comparison of a normal inner ear and one with Meniere's disease, highlighting the swollen (hydropic) membranous labyrinth filled with excess endolymph.
• Visual 2: Flowchart: A sequence showing how endolymph overproduction/malabsorption leads to increased pressure, hair cell damage, and the resulting symptoms of vertigo and hearing loss.

Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pathophysiology of Inner Ear Disorders as background academic context rather than a clinical decision trigger.
• The primary nursing goal during an acute Meniere's attack is patient safety. The vertigo can be sudden and severe, creating a high risk for falls and injury.
• Patient education is crucial for long-term management. Teaching about a low-sodium diet, medication adherence, and avoidance of triggers like caffeine and alcohol can empower patients to reduce the frequency and severity of attacks.
• What if? If a patient presents with the classic triad of Meniere's but the symptoms are constant and progressive rather than episodic, the nurse should be aware that this might suggest an underlying retrocochlear pathology, like a vestibular schwannoma, which requires different diagnostic workup (e.g., MRI) and management.

How to Approach the Question

• First, break down the question stem to identify key anatomical and physiological terms: 'endolymph,' 'membranous labyrinth,' 'increased pressure,' 'sensory cells,' 'ampulla,' and 'cochlea.'
• Recognize that all these terms point specifically to the inner ear and its dual function of hearing (cochlea) and balance (ampulla, part of the vestibular system).
• The core pathology described is 'accumulation of endolymph' causing 'increased pressure' and 'destruction.' This points to a fluid balance problem within the inner ear.
• Evaluate the options based on this understanding. Eliminate options that relate to the middle ear (Otitis media, Otosclerosis) or a different body system entirely (Hordeolum).
• The remaining option, Meniere's disease, is known as endolymphatic hydrops, which perfectly matches the pathophysiology described in the question.

Concept Tested & Keywords

• Concept Tested: Pathophysiology of Inner Ear Disorders
• Stem keywords: endolymph, membranous labyrinth, increased pressure, destruction of sensory cells, ampulla, cochlea
• Lead-in keywords: is

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QVKGGV4mB4hlMrBgjQIUVf

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