Parkinson's Parkinson's Mental Health and Cognitive Changes 3

Question 1

What type of hallucination is MOST commonly reported by Parkinson's disease patients?

Accepted Answer

Visual hallucinations

Answer

Visual hallucinations — typically of people, animals, or objects — are the most common psychotic symptom in PD, affecting 20-40% of patients.

Question 2

Which medication is FDA-approved specifically for Parkinson's disease psychosis?

Accepted Answer

Pimavanserin

Answer

Pimavanserin (Nuplazid) is the first and only FDA-approved treatment for PD psychosis; it acts as a serotonin 5-HT2A inverse agonist without blocking dopamine receptors.

Question 3

Why are most conventional antipsychotic medications dangerous for Parkinson's disease patients?

Accepted Answer

They block dopamine D2 receptors, worsening parkinsonism

Answer

Traditional antipsychotics block dopamine D2 receptors, which dramatically worsens motor symptoms in PD patients who already have severe dopamine deficiency.

Question 4

Approximately what percentage of Parkinson's patients on dopamine agonist therapy develop impulse control disorders (ICDs)?

Accepted Answer

10-15%

Answer

Impulse control disorders — including pathological gambling, hypersexuality, binge eating, and compulsive shopping — affect approximately 10-15% of PD patients taking dopamine agonists.

Question 5

What defines dopamine dysregulation syndrome (DDS) in Parkinson's disease?

Accepted Answer

Compulsive overuse of dopaminergic medications far beyond the dose needed for motor control

Answer

DDS is an addictive disorder in which PD patients compulsively self-administer dopaminergic drugs in excess of therapeutic needs, driven by abnormal reward pathway activation.

Parkinson's Practice Test

Parkinson's Practice Test

Parkinson's Parkinson's Mental Health and Cognitive Changes 3