Persistent Depressive Disorder Persistent Depressive Disorder Comorbidities & Differential Diagnosis 2

Question 1

Which chronic medical condition has a bidirectional relationship with Persistent Depressive Disorder and is frequently comorbid?

Accepted Answer

Chronic pain conditions such as fibromyalgia

Answer

Chronic pain conditions like fibromyalgia frequently co-occur with PDD, with each condition worsening the other's severity and prognosis.

Question 2

A patient presents with 2 years of low mood and also endorses inattention and disorganization. Which comorbid diagnosis must be evaluated?

Accepted Answer

Attention-Deficit/Hyperactivity Disorder (ADHD)

Answer

ADHD frequently co-occurs with PDD, and cognitive symptoms such as poor concentration can overlap, requiring careful differential assessment.

Question 3

Which eating disorder most commonly co-occurs with Persistent Depressive Disorder?

Accepted Answer

Binge Eating Disorder

Answer

Binge Eating Disorder is the most prevalent eating disorder comorbid with PDD, with emotional eating often used to manage chronic low mood.

Question 4

What is the term used when a full Major Depressive Episode is superimposed on a baseline of Persistent Depressive Disorder?

Accepted Answer

Double Depression

Answer

The clinical term 'double depression' describes the superimposition of a full MDE on the chronic baseline of PDD.

Question 5

Differentiating PDD from Major Depressive Disorder, single episode, primarily hinges on which factor?

Accepted Answer

Duration and chronicity of symptoms (2+ years)

Answer

The critical distinction is that PDD requires 2+ years of chronic depressed mood, while a single MDE requires only 2 weeks of symptoms.

Persistent Depressive Disorder Practice Test