Source / episode info
- **Episode:**453
- **Title:**Divine Intervention Episode 453: A Quick Review of HY Psychiatry Timelines
- **Published:**2023-04-21
- Source:Episode page
One-liner
This episode provides a high-yield review of psychiatric diagnostic timelines, emphasizing the precise duration requirements that differentiate conditions like PTSD from Acute Stress Disorder, and Bipolar I vs Bipolar II, while also covering criteria for MDD, GAD, ADHD, and various psychotic spectrum disorders.
High-yield summary
- PTSD vs ASD: Symptoms must persist for >1 month to meet the criteria for PTSD; if symptoms are present for <1 month following a trauma, it is classified as Acute Stress Disorder (ASD).
- Adjustment Disorder: Occurs when symptoms develop after an identifiable stressor but do not meet full criteria for another disorder and typically resolve within 6 months of the stressor ending.
- Bipolar Spectrum: Bipolar I requires mania lasting >1 week (or hospitalization); Bipolar II requires hypomania lasting 4 days. Cyclothymia involves chronic, fluctuating mood symptoms over time.
- Schizophrenia Stages: The duration of hallucinations dictates the diagnosis: <1 month = Brief Psychotic Disorder; 1-6 months = Schizophreniform Disorder; >6 months = Schizophrenia.
- MDD Criteria: Requires 5 out of 9 symptoms (including depressed mood or anhedonia) persisting for >2 weeks.
- Developmental Cutoffs: ADHD must be diagnosed before age 12 and involve symptoms in at least two settings; Conduct Disorder requires the patient to be <18 years old.
Learning objectives
- Differentiate between Acute Stress Disorder (ASD), PTSD, and Adjustment Disorder based on symptom duration following a stressor.
- Apply diagnostic criteria for Major Depressive Disorder (MDD) and Generalized Anxiety Disorder (GAD), paying close attention to required timeframes.
- Distinguish the severity and duration requirements of Bipolar I vs. Bipolar II episodes (Mania vs. Hypomania).
- Correctly stage psychotic disorders based on the onset and duration of hallucinations (e.g., Schizophreniform vs. Schizophrenia).
- Identify age-specific diagnostic cutoffs for behavioral disorders, such as Conduct Disorder versus Antisocial Personality Disorder.