Vertigo is due to a problem in?

Appeared in: Daman & Diu Staff Nurse - 2018

Explanation

Vertigo is a specific type of dizziness characterized by a sensation of spinning or motion.
This sensation arises from a dysfunction in the body's system for balance and spatial orientation.
The primary organ for balance, the vestibular system (which includes the labyrinths, semicircular canals, utricle, and saccule), is located within the inner ear.
An imbalance of vestibular input from the inner ear sends conflicting signals to the brain, resulting in the perception of movement known as vertigo.

Option A: The external ear's function is to collect sound waves and channel them towards the eardrum. It plays no role in the body's sense of balance.
Option B: The tympanic membrane, or eardrum, is a structure that separates the external ear from the middle ear. Its function is to vibrate in response to sound waves, which is a key step in hearing, not balance.
Option D: The middle ear contains three small bones (ossicles) that transmit sound vibrations from the eardrum to the inner ear. Its primary role is in the mechanical transmission of sound, not in maintaining equilibrium.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomical basis of vertigo as background academic context rather than a clinical decision trigger.
A primary nursing responsibility for a patient experiencing vertigo is ensuring their safety by implementing fall precautions, as the false sensation of movement creates a high risk of falls and injury.
It is crucial for nurses to accurately document the patient's description of dizziness to help differentiate true vertigo from other forms like light-headedness (presyncope), as the underlying causes and treatments are vastly different.
What if? If a patient with vertigo also presents with unilateral hearing loss and tinnitus, the nurse should suspect a condition like Ménière's disease, which requires specific management and referral to a specialist.

How to Approach the Question

First, identify the key term in the question, which is 'vertigo'.
Recall the definition of vertigo: a false sensation of spinning or movement.
Connect this symptom to the body system responsible for balance and spatial orientation.
Review the basic anatomy and function of the ear's different parts.
The external and middle ear are primarily involved in hearing.
The inner ear contains the vestibular apparatus, which is the main organ of balance. Therefore, a problem in the inner ear is the logical cause of vertigo.

Concept Tested & Keywords

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E6 Medicine Davidson Principles Practice 24e p. 1106-1108

E6 Medicine Harrison 22e Part 1 p. 203-205

Practise the full Daman & Diu Staff Nurse - 2018

Attempt every question from this paper in a timed mock, then review the full solution for each one.