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Red flags in mental health assessment

Red flags in mental health assessment

Red flags in mental health assessment

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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).

Common Catatonic Behaviors

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.

Radiograph of spiral femur fracture in a child

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.

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Practice Questions: Red flags in mental health assessment

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A 24-year-old man is brought to your emergency department under arrest by the local police. The patient was found naked at a busy intersection jumping up and down on top of a car. Interviewing the patient, you discover that he has not slept in 2 days because he does not feel tired. He reports hearing voices. The patient was previously hospitalized 1 year ago with auditory hallucinations, paranoia, and a normal mood. What is the most likely diagnosis?

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Flashcards: Red flags in mental health assessment

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On Fundoscopy, _____ is characterized by optic disc swelling / elevation with blurred margins (usually bilateral)

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On Fundoscopy, _____ is characterized by optic disc swelling / elevation with blurred margins (usually bilateral)

Papilledema

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Red flags in mental health assessment – USMLE Diagnosis Notes | Oncourse