Chapter 40 Psychiatric Emergencies
1 What constitutes a psychiatric emergency?
Most practically defined, this is a potentially preventable or treatable condition that threatens:
The patient’s own bodily integrity by suicide, self-mutilation, or drug ingestion
Someone else’s bodily integrity by assault or homicide
The patient’s own psychological and functional integrity (i.e., ability to perceive reality, feel appropriately, make judgments, remember)
The psychological and functional integrity of the family unit.
2 What is the epidemiology of psychiatric illness in children?
Between 6 and 9 million children and adolescents have serious emotional disturbances, and this accounts for 9–13% of all children in the United States.
In addition, only an estimated 20% of children in the United States with some form of mental health problem severe enough to require treatment are actually identified as such, and are receiving mental health services.
Emergency department (ED) visits for psychiatric conditions accounts for 1.6% of all ED visits and 3.2% of visits requiring an inpatient admission.
3 Which is the most common psychiatric emergency in children?
KEY POINTS: EPIDEMIOLOGY OF PSYCHIATRIC EMERGENCIES
1 Up to 6–9 million children suffer from serious emotional disturbances, accounting for 9–13% of all children in the United States.
2 Psychiatric conditions account for under 2% of all emergency department visits but for over 3% of emergency department visits requiring inpatient hospitalization.
3 Suicide is the leading cause of death from a psychiatric cause and the third leading cause of death overall in older adolescents.
EVALUATION
5 What are the ABCs of the mental status examination in the ED?
A = Appearance/affect: dress/grooming; abnormal movements; eye contact; facial expression; affect (depressed, blunted, flat, anxious, constricted, hostile, euphoric)
B = Behavior: attitude (cooperative, manipulative, guarded, suspicious, angry, violent, withdrawn)
Thought content—delusions, suicidal or homicidal; paranoia; somatic preoccupation; depression, obsessions, fears, phobias; belief of special powers; thought control; depersonalization; feelings of helplessness or hopelessness; guilt
Thought process—rate, organization, goal directedness, tangential, flight of ideas
Level of consciousness—orientation, attention, concentration, abstraction
6 How should the initial approach be conducted in evaluating a child with a possible psychiatric emergency?
7 List some of the medical considerations of acute psychosis
Trauma: Intracranial hemorrhage
Drug intoxication: Ethanol, barbiturates, cocaine, opiates, amphetamines, hallucinogens, marijuana, phencyclidine, anticholinergic medications (antihistamines, tricyclics), heavy metals, corticosteroids, neuroleptic medications
CNS lesions/infections: Tumor, hemorrhage, temporal lobe epilepsy, abscess/meningitis/encephalitis, HIV
Cerebral hypoxia: Carbon monoxide poisoning, cardiopulmonary failure
Metabolic/endocrinologic: Hypoglycemia, hypocalcemia, hyperthyroidism or hypothyroidism, adrenal insufficiency, uremia, liver failure, diabetes mellitus, porphyria, Wilson’s disease
Collagen vascular diseases: Lupus
Miscellaneous causes: Malaria, typhoid fever, Wilson’s disease, Epstein-Barr virus infection
RESTRAINTS
9 What are the indications for the use of physical restraint or seclusion in the ED setting?
To prevent imminent harm to the patient or other persons when other means of control are not effective or appropriate
To prevent serious disruption of the treatment plan or significant damage to the physical environment
To decrease the stimulation a patient receives (i.e., for those with PCP [phencyclidine] or ethanol intoxications)
Joint Commission on Accreditation of Healthcare Organizations. 2005 Restraint and Seclusion. Available at www.jointcommission.org/AccreditationPrograms/BehavioralHealthCare/Standards/FAQs/Provision+of+Care+Treatment+and+Services/Restraint+and+Seclusion/Restraint_Seclusion.htm
10 Describe the proper procedure in the use of physical restraint
Explain to the patient why physical restraint is necessary.
Enlist at least five caretakers, one for each limb and one for the head. Avoid pressure on the patient’s throat or chest and keep hands away from the patient’s mouth.
Closely supervise (1:1) the patient in physical restraints; assess restraints at least every 30 minutes and document findings.
Avoid placement of the restrained child in the prone position (this could interfere with ventilation).
Remove restraints only with adequate staff present, and when the patient has regained control (either on his or her own volition, or with the use of chemical restraint).
KEY POINTS: PROPER ADMINISTRATION OF PHYSICAL RESTRAINTS
1 Explain to the patient why physical restraint is necessary.
2 Have at least five caretakers.
3 Avoid pressure on the patient’s throat or chest.
4 Avoid placement of the restrained child in a prone position.
5 Provide close supervision (1:1) while the patient is in physical restraints.
6 Assess restraints at least every 30 minutes and document assessment.
7 Remove restraints only with adequate staff present, and when the patient has regained control.
11 What are the drugs of choice to use as a restraint of a child?
Table 40-1 Drugs of Choice to Use as a Restraint in Children
Drug | Dose | Comment |
---|---|---|
Benzodiazepines | ||
Diazepam (Valium) | 0.1 mg/kg PO or IM/IV | Dose range, 2–10 mg |
Lorazepam (Ativan) | 0.05 mg/kg PO or IM/IV | Dose range, 1–2 mg with titrated dose every 30 minutes |
High-potency neuroleptics* | ||
Haloperidol (Haldol) | 0.05 mg/kg PO or IM/IV | Dose range, 2–5 mg |
Droperidol (Inapsine)† | 0.05 mg/kg IM/IV | Dose range, 2.5–5 mg |
(0.1–0.15 mg/kg maximum dose) (has shorter half-life [2–4 hours] than haloperidol) | ||
Low-potency neuroleptics | ||
Chlorpromazine (Thorazine) | 0.5–1 mg/kg PO or IM/IV | Usually 200 mg/d |
Thioridazine (Mellaril) | 0.5–3 mg/kg PO | May cause hypotension |
Antihistamines | ||
Diphenhydramine (Benadryl) | 1–2 mg/kg PO or IM/IV | Usually 12.5–75 mg |
IM = intramuscularly, IV = intravenously, PO =orally.
Notes: For substance-induced psychosis due to hallucinogens (such as PCP), benzodiazepines given at 30- to 60-minute intervals appear to be more effective than the neuroleptic medications. For substance-induced psychosis due to stimulant intoxication (such as with cocaine or amphetamine), droperidol may be the optimal choice because of its shorter half-life. Some authors advocate concomitant use of antihistamine with neuroleptics to decrease the likelihood of dystonia.
* Children have a slightly higher risk of dystonia compared to adults. Although very rare, neuroleptic malignant syndrome can occur with these medications.
† Droperidol has come under increased scrutiny since the U.S. Food and Drug Administration has issued a “black box” warning because of concerns of a weak association with QT prolongation and torsades de pointes. The extensive experience and safety of this agent in rapid sedation of severely agitated and violent patients leave a quandary with the use of this drug.
Adapted from Shale JH, Shale CM, Mastin WD: A review of the safety and efficacy of droperidol for the rapid sedation of severely agitated and violent patients. J Clin Psychiatry 64:500–505, 2003.
DRUG-INDUCED PSYCHIATRIC EMERGENCIES
DEPRESSION AND SUICIDAL IDEATION
16 How can a clinician assess the presence of depression and suicidal potential of the depressed patient?
A modified SAD PERSONS Scale has been developed and used in the adult and adolescent populations (Table 40-2).
Mnemonic | Characteristic | Score |
---|---|---|
Sex | Male | 1 |
Age | <19 or >45 years | 1 |
Depression/hopelessness | Admits to depression; poor concentration, appetite, or sleep | 2 |
Prior attempts/psychiatric care | Prior inpatient or outpatient care | 1 |
ETOH/drug use | Addiction or frequent use | 1 |
Rational thinking lost | Psychosis | 2 |
Single/separated/divorced | 1 | |
Organized/serious attempt | Life-threatening presentation, careful plan | 2 |
No social supports | No family, friends, religious associations | 1 |
Stated future intent | Determined to repeat, ambivalent | 2 |
ETOH = ethanol.
A score > 6 suggests 1:1 observation and acute psychiatric evaluation; a score > 10 suggests psychiatric inpatient hospitalization.
Adapted from Hockberger RS, Rostein RJ: Assessment of suicide potential by nonpsychiatrists using the SAD PERSONS Score. J Emerg Med 6:99–107, 1988.
17 What questions have been identifed as useful in screening for suicide risk?
18 What are some medical conditions associated with depression?
Neurologic: Hydrocephalus, migraine, myasthenia gravis, seizure, tumor
Endocrine: Adrenal insufficiency, type 1 diabetes, hyperthyroidism or hypothyroidism, menses-related condition, postpartum status
Metabolic: Hypercalcemia or hypocalcemia, hyponatremia, uremia, porphyria, Wilson’s disease
Infectious/inflammatory: HIV, influenza, Epstein-Barr virus, hepatitis, collagen vascular diseases
Co-occurring illness: Cancer, hypothyroidism, systemic lupus erythematosus, HIV, diabetes, epilepsy
19 What are some medications associated with depression?
Category | Specific Medications |
---|---|
Neuropsychiatric | Neuroleptics, barbiturates, benzodiazepines, carbamazepine, phenytoin, stimulants |
Antimicrobial | Ampicillin, griseofulvin, metronidazole, trimethoprim |
Anti-inflammatory/analgesic | Corticosteroids, opiates |
Cardiovascular | Clonidine, propranolol |
Miscellaneous | Chemotherapy, ethanol, caffeine, oral contraceptives |
Adapted from Milner KK, Florence T, Glick RL: Mood and anxiety syndromes in emergency psychiatry. Psychiatr Clin North Am 22:755–777, 1999.
20 Describe the specific ED management issues in the evaluation of a child with depression or suicidal ideation
21 List essential criteria for outpatient disposition of the suicidal child/adolescent
No requirement of inpatient medical care, including intoxication or delirium
No prior history of suicidal attempt, psychiatric disorder, or substance abuse
Presence in home of supportive adult with good relationship to child/adolescent
Adult agreement to safety plan with close observation of patient until scheduled outpatient follow-up appointment
Adult agreement to remove or secure all lethal risks (firearms, medications, drugs, alcohol) in home
Adult and patient provided with indications to return to ED if condition deteriorates
Follow-up arranged for additional evaluation and treatment
Both patient and adult agreement with plan and recommendations
KEY POINTS: CRITERIA FOR OUTPATIENT MANAGEMENT OF THE PATIENT WITH SUICIDAL IDEATION
1 No inpatient medical care is required.
2 No prior history of suicidal attempt, psychiatric disorder, or substance abuse.
3 No active suicidal ideation.
4 Presence in home of supportive adult who agrees with safety plan and agrees to remove or secure all lethal risks.
AGGRESSION
23 In assessing the child with aggression, what key information is necessary to accurately evaluate the cause of this behavior?
EATING DISORDER
26 What are the four diagnostic criteria for anorexia nervosa?
Refusal to maintain weight within a normal range for height and age (more than 15% below ideal body weight)
Severe body image disturbance in which body image is the predominant measure of self-worth with denial of the seriousness of the illness
In postmenarchal females, absence of the menstrual cycle, or amenorrhea (greater than three cycles).