Red flags in mental health assessment

Suicide & Homicide Risk - Immediate Dangers

• Direct Questioning is Key: Always ask directly about thoughts of harm to self or others.

  • Ideation: "Are you having thoughts of killing yourself?"
  • Intent: "Do you want to die?"
  • Plan: "How, when, where?"
  • Access to Means: Especially firearms.

• Key Suicide Risk Factors:

  • Hopelessness is a powerful predictor.
  • History of prior attempts (strongest predictor).
  • Male gender, age >45 or adolescent, social isolation.
  • Co-occurring psychiatric illness (MDD, Bipolar, Schizophrenia, Substance Use).
  • Access to lethal means.

• Key Homicide Risk Factors:

  • History of violence is the best predictor.
  • Recent stressors (job loss, separation).
  • Paranoid ideation or command hallucinations.
  • Male, young, impulsive, history of substance abuse.

⭐ High-Yield: A patient with a history of a suicide attempt who expresses feelings of hopelessness and has access to a firearm represents an extremely high-risk scenario requiring immediate intervention, often hospitalization.

Psychosis & Catatonia - Reality Breaks

• Psychosis: A severe mental condition characterized by a loss of contact with reality. Core features include:

  • Hallucinations: Sensory perceptions without external stimuli (auditory, visual).
  • Delusions: Fixed, false beliefs held despite contrary evidence (persecutory, grandiose).
  • Disorganized Speech/Thought: Incoherent, tangential, or illogical thinking.

• Red Flags for Psychosis:

  • Sudden onset, especially age >40 (suspect organic cause like delirium, tumor).
  • Coexisting medical illness, fever, or substance intoxication/withdrawal.
  • Focal neurological signs (e.g., weakness, ataxia, new-onset seizures).
  • ⚠️ Command hallucinations instructing harm to self or others.

• Catatonia: A psychomotor syndrome involving marked disturbances in movement and behavior.

  • Key signs: Immobility/stupor, mutism, posturing, waxy flexibility, negativism.
  • Red Flags: Fever, autonomic instability (↑BP, ↑HR) → Neuroleptic Malignant Syndrome (NMS).

⭐ High-Yield Pearl: Catatonia diagnosis is supported by rapid, temporary symptom resolution after a lorazepam challenge (1-2 mg IV/IM).

Abuse, Neglect & Other Red Flags - Hidden Crises

• General Indicators:

  • Vague, changing, or rehearsed-sounding history.
  • Delay in seeking medical care for significant injury.
  • Parent/caregiver is indifferent or overly hostile.

• Physical Abuse:

  • Injuries inconsistent with history (e.g., spiral fractures from a simple fall).
  • Bruises in non-mobile infants or in protected areas (torso, ears, neck).
  • Patterned injuries: belt marks, cigarette burns, bite marks.
  • Subdural & retinal hemorrhages (shaken baby syndrome).

• Neglect:

  • Poor hygiene, inappropriate dress for weather.
  • Malnutrition, failure to thrive, developmental delay.

• Vulnerable Adult Abuse:

  • Unexplained financial depletion.
  • Dehydration, pressure ulcers, poor medication adherence.

⭐ In child abuse, spiral fractures of long bones (e.g., femur, humerus) are highly specific for non-accidental trauma caused by a twisting force.

High‑Yield Points - ⚡ Biggest Takeaways

• Suicidal or homicidal ideation is the most critical red flag, requiring immediate safety assessment.
• Acute psychosis, particularly with command hallucinations, warrants urgent evaluation to rule out imminent harm.
• An abrupt change in mental status often signals an underlying medical condition causing delirium.
• Features of catatonia (e.g., mutism, posturing) represent a neuropsychiatric emergency.
• High fever with muscle rigidity suggests Neuroleptic Malignant Syndrome or Serotonin Syndrome.
• Severe alcohol or benzodiazepine withdrawal can be life-threatening.