EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+ 2025 – 2026
What is oscillopsia and what is its cause? - ANSWERS-The
perception of objects bouncing or blurring when the head is
moving. Can be caused by a deficit in the VOR.
Explain the hyperventilation-induced nystagmus test. What
is a normal and abnormal response? - ANSWERS-Using
goggles, the patient should be in a standing position and
instructed to take deep, rapid breaths for 30-60 seconds.
Normal: No nystagmus
Abnormal: nystagmus (direction of fast phase is ipsilesional)
,Explain Romberg's sign. What does the test help
distinguish? - ANSWERS-Decrease in postural stability when
the eyes are closed.
Distinguish patients with unsteadiness due to the
proprioceptive anomalies in the lower extermities from
those with vestibular system damage.
Describe the Romberg test. What is a normal and abnormal
result? What does it assess? - ANSWERS-Patient stands with
eyes open and arms crossed- postural stability is evaluated,
then compared to stability with eyes closed and arms
crossed.
Normal: Should not fall or increase in sway for 30 seconds
Abnormal: increase in sway, stagger, fall.
Assess function of the lower limb proprioceptive spinal
reflex arcs.
What are the 5 main subtests during a ENG/VNG? -
ANSWERS-1) Oculo-motor
2) Spontaneous nystagmus
3) Rapid Positioning (Dix-Hallpike)
4) Positional nystagmus
5) Caloric irrigations
, VOR stands for ____________ - ANSWERS-Vestibulo-ocular
reflex
Which of the 5 main subtests should be evaluated by direct
examination and not by post hoc recordings? - ANSWERS-
Dix-Hallpike
What are the transducers of auditory and vestibular sensory
epithelia? - ANSWERS-The auditory and vestibular sensory
epithelia are hair cells.
What are the two types of vestibular sensory epithelia? -
ANSWERS-the cristae ampullares and the maculae.
How do the sensory epithelia convert and send stimuli? -
ANSWERS-The cilia on each hair cell in the vestibular system
are bound together to form the ciliary tuft. When the tuft is
bent towards the kinocilium, potassium channels are
opened and the hair cells are excited, releasing
neurotransmitters to activate the nerve endings on the hair
cells. This propogates action potentials along cranial nerve
VIII.