How many symptoms are required for Major Depressive Disorder?
5 or more symptoms for at least 2 weeks, including depressed mood or anhedonia
What is the SIGECAPS mnemonic for depression?
Sleep, Interest, Guilt, Energy, Concentration, Appetite, Psychomotor, Suicidal ideation
What is anhedonia?
Loss of interest or pleasure in activities previously enjoyed
What distinguishes MDD from Persistent Depressive Disorder?
PDD (Dysthymia): depressed mood most days for at least 2 years; MDD: 2 weeks
What is required for Bipolar I diagnosis?
At least one manic episode (may also have depressive episodes)
What is required for Bipolar II diagnosis?
At least one hypomanic episode AND one major depressive episode (no full manic episodes)
What is the DIGFAST mnemonic for mania?
Distractibility, Indiscretion, Grandiosity, Flight of ideas, Activity increase, Sleep deficit, Talkativeness
How long must symptoms last for a manic episode?
At least 1 week (or any duration if hospitalization required)
How long must symptoms last for hypomanic episode?
At least 4 consecutive days
What is the key difference between mania and hypomania?
Hypomania has no marked impairment in functioning and no psychotic features
What are the 4 symptom clusters required for PTSD?
Intrusion, avoidance, negative cognitions/mood, arousal/reactivity
What qualifies as Criterion A trauma for PTSD?
Exposure to actual or threatened death, serious injury, or sexual violence
How long must PTSD symptoms last?
More than 1 month
What is Acute Stress Disorder?
Similar to PTSD but symptoms last 3 days to 1 month after trauma
What is required for Generalized Anxiety Disorder diagnosis?
Excessive worry most days for 6+ months about multiple things, difficult to control
How many associated symptoms are needed for GAD?
3 or more (restlessness
What defines a panic attack?
Abrupt surge of intense fear/discomfort with 4+ symptoms peaking within minutes
What are common panic attack symptoms?
Palpitations, sweating, trembling, shortness of breath, chest pain, nausea, dizziness, fear of dying
What is required for Panic Disorder diagnosis?
Recurrent unexpected panic attacks plus 1+ month of worry about attacks or maladaptive behavior change
What distinguishes Social Anxiety Disorder?
Marked fear of social situations where scrutiny possible; fear of showing anxiety symptoms
How long must Social Anxiety symptoms persist?
6 months or more
What is required for OCD diagnosis?
Presence of obsessions and/or compulsions that are time-consuming or cause significant distress
What are obsessions in OCD?
Recurrent persistent intrusive thoughts
What are compulsions in OCD?
Repetitive behaviors or mental acts performed to reduce anxiety from obsessions