BPPV Diagnosis | Horizontal Roll Test [Performance, Interpretation]

The video tutorial covers the diagnosis of BPPV using the Dix Hallpike and horizontal roll maneuvers. It explains the procedures, interpretations, and implications of test results, including geotropic and ageotropic nystagmus. The tutorial also provides a test-style question to reinforce understanding and concludes with a discussion on ruling out BPPV.

What is the primary purpose of the Dix-Hallpike maneuver?

• To measure blood pressure changes

• To reproduce vertical nystagmus

• To diagnose horizontal canal issues

• To assess central nervous system disorders

What does a negative Dix-Hallpike maneuver typically indicate?

• Central nervous system disorder

• Immediate need for treatment

• Presence of vertical nystagmus

• No nystagmus or horizontal nystagmus

How does the horizontal roll maneuver differ from the Dix-Hallpike maneuver?

• It is used for anterior canal issues

• It assesses horizontal nystagmus

• It requires the patient to stand

• It measures blood pressure

What is the initial position for the horizontal roll maneuver?

• Lying supine with neck flexed 30 degrees

• Lying prone with neck extended

• Standing with arms raised

• Sitting upright

Why is it important to observe the patient's eyes for at least 30 seconds during the horizontal roll maneuver?

• To assess the patient's breathing

• To measure blood pressure changes

• To allow time for nystagmus to appear

• To ensure the patient is comfortable

What does geotropic nystagmus indicate in the horizontal roll maneuver?

• A central nervous system disorder

• No nystagmus present

• A canalithiasis with nystagmus lasting less than a minute

• A cupulolithiasis with nystagmus lasting more than a minute

In geotropic nystagmus, which side is considered the affected side?

• The side with equal symptoms

• The side with less severe symptoms

• The side with no symptoms

• The side with worse symptoms

What is indicated by ageotropic nystagmus lasting longer than a minute?

• A central nervous system issue

• No vestibular disorder

• A cupulolithiasis

• A canalithiasis

What should be concluded if both the Dix-Hallpike and horizontal roll maneuvers are negative?

• The patient definitely has BPPV

• BPPV is unlikely to be the cause of dizziness

• Immediate treatment is required

• The tests need to be repeated immediately

What is the next step if both diagnostic tests for BPPV are negative but symptoms persist?

• Reassess BPPV with the same tests later

• Ignore the symptoms

• Start treatment for BPPV immediately

• Perform a blood test