Evaluation Of Patient With Dizziness

Question 1

Direction of Eye Gaze with R horizontal canal excitation

Answer 1

Left

Question 2

Direction of Eye Gaze with R superior canal excitation

Answer 2

Upward, torsion to left

Question 3

Direction of Eye Gaze with R posterior canal excitation

Answer 3

Downward, torsion to left

Question 4

Drugs that can cause dysequilibrium (6)

Answer 4

Aminoglycosides, Cisplatin, Antiepileptics, Amiodarone, Alcohol, Methotrexate

Question 5

Drugs that can cause vertigo (3)

Answer 5

Amiboglycosides, Cisplatin, Anticoagulants

Question 6

Explain Alexander’s Law

Answer 6

The tendency of spontaneous nystagmus to increase when looking towards the direction of the fast paced nystagmus (intact ear). Acute Unilateral Vestibular Loss is signaled by the slow phase nystagmus. However, by convention, the name of a spontaneous nystagmus is named after yhe fadt paced. Looking away from the direction of the fast pace decreases nystagmus and indicates the affected ear