Acute psychosis: Difference between revisions
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==Background== | ==Background== | ||
*Caused by many psychiatric | *Caused by many psychiatric as well as medical conditions | ||
==Clinical Features== | ==Clinical Features== | ||
*Agitation, restlessness, irritability | *[[Agitation]], restlessness, irritability | ||
*Decreased attention | *Decreased attention | ||
*Inappropriate or hostile behaviors | *Inappropriate or hostile behaviors | ||
*[[Hallucinations]], delusions, paranoia | *[[Hallucinations]], delusions, paranoia | ||
*+/- additional features of underlying pathology (e.g. signs of intoxication/withdrawal, trauma) | |||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
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==Evaluation== | ==Evaluation== | ||
*Rule out any organic causes or contributing factors | *Rule out any organic causes or contributing factors | ||
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==Management== | ==Management== | ||
*Treat underlying condition! | |||
{{General ED Psychiatric Management}} | {{General ED Psychiatric Management}} | ||
Revision as of 16:05, 10 October 2019
Background
- Caused by many psychiatric as well as medical conditions
Clinical Features
- Agitation, restlessness, irritability
- Decreased attention
- Inappropriate or hostile behaviors
- Hallucinations, delusions, paranoia
- +/- additional features of underlying pathology (e.g. signs of intoxication/withdrawal, trauma)
Differential Diagnosis
Altered mental status
Diffuse brain dysfunction
- Hypoxic encephalopathy
- Acute toxic-metabolic encephalopathy (Delirium)
- Hypoglycemia
- Hyperosmolar state (e.g., hyperglycemia)
- Electrolyte Abnormalities (hypernatremia or hyponatremia, hypercalcemia)
- Organ system failure
- Hepatic Encephalopathy
- Uremia/Renal Failure
- Endocrine (Addison's disease, Cushing syndrome, hypothyroidism, myxedema coma, thyroid storm)
- Hypoxia
- CO2 narcosis
- Hypertensive Encephalopathy
- Toxins
- TTP / Thrombotic thrombocytopenic purpura
- Alcohol withdrawal
- Drug reactions (NMS, Serotonin Syndrome)
- Environmental causes
- Deficiency state
- Wernicke encephalopathy
- Subacute Combined Degeneration of Spinal Cord (B12 deficiency)
- Vitamin D Deficiency
- Zinc Deficiency
- Sepsis
- Osmotic demyelination syndrome (central pontine myelinolysis)
- Limbic encephalitis
Primary CNS disease or trauma
- Direct CNS trauma
- Diffuse axonal injury
- Subdural/epidural hematoma
- Vascular disease
- SAH
- Stroke
- Hemispheric, brainstem
- CNS infections
- Neoplasms
- Paraneoplastic Limbic encephalitis
- Malignant Meningitis
- Pancreatic Insulinoma
- Seizures
- Nonconvulsive status epilepticus
- Postictal state
- Dementia
Psychiatric
Psychiatric Disorders with Psychotic Symptoms
- Acute psychosis
- Schizophrenia
- Schizoaffective disorder
- Delusional disorder
- Schizotypal personality disorder
- Schizoid personality disorder
- Bipolar disorder with psychotic features
Evaluation
- Rule out any organic causes or contributing factors
General ED Psychiatric Workup
- Point-of-care glucose
- CBC
- Chem 7
- LFTs
- ECG (for toxicology evaluation)
- ASA level
- Tylenol level
- Urine toxicology screen/Blood toxicology screen
- EtOH
- Urine pregnancy/beta-hCG (if female of childbearing age)
- Consider:
- Ammonia (see Hepatic encephalopathy)
- TSH (hypo or hyperthyroidism may mimic mental illness)
- CXR (for Tb screen or rule-out delirium in older patient)
- UA (for rule-out delirium in older patients)
- Head CT (to rule-out ICH in patients with AMS)
- Lumbar puncture (to rule-out meningitis or encephalitis)
Management
- Treat underlying condition!
General ED Psychiatric Management
- Non-pharmacologic
- Verbal de-escalation
- Offer comforting items: blanket, meal, pillow, etc
- Quiet room
- Physical restraints (should administer medications if restraints used, as decreases restraint time)
- Pharmacologic: Goal is to calm patient without oversedation
- No history of psychosis
- Haloperidol 0.5mg-5mg +/- lorazepam 0.25-2mg (PO/IM/IV)
- Consider adding benztropine 0.5-2mg or diphenhydramine 25-50mg (PO/IV/IM) (reduces dystonia or extrapyramidal reaction)
- Consider risperidone 0.5-2mg PO or olanzapine 2.5-20mg (PO/IM/SL) or ziprasidone 10-20mg IM
- Haloperidol 0.5mg-5mg +/- lorazepam 0.25-2mg (PO/IM/IV)
- Known or suspected underlying psychotic illness
- Continue treatment with previous antipsychotic or
- PO: olanzapine 5-10mg or risperidone 0.5-2mg +/- lorazepam: 0.5-2mg
- IM: olanzapine 2.5-20mg or ziprasidone 10-20mg or
- (PO/IM/IV) Haloperidol 0.5-5mg +/- lorazepam 0.5-2mg
- Consider adding benztropine 0.5-2mg or diphenhydramine 25-50mg (PO/IV/IM) (reduces dystonia or extrapyramidal reaction)
- No history of psychosis
Disposition
- Depends on underlying cause of psychosis
- Hospitalization for first psychotic episode, suicidal or homicidal, unable to care for self or poor support system