Physical disorders among emergency psychiatric patients

Elimination of Routine Screening Laboratory Tests for Psychiatric Admission: A Quality Improvement Initiative

OBJECTIVE

Research has shown that routine screening laboratory tests for patients with mental health symptoms admitted to psychiatry units find little unexpected clinical abnormalities. This study examined the effects on cost of care and patient safety measures of a hospital change in policy in which such routine tests were no longer required.

METHODS

This retrospective cohort study analyzed data from all patients admitted from the emergency department (ED) to inpatient psychiatry at a tertiary care hospital 4 months before and 4 months after the policy change. Primary outcome measures were number and costs of laboratory tests ordered in the ED and during the inpatient stay. Secondary measures included length of stay (LOS) and number of hospital consultations during admission, patient transfers to nonpsychiatry services, and inpatient deaths. Chi-square tests and Wilcoxon rank sum tests were used to examine group differences.

RESULTS

In total, data from 1,910 patients were included (886 preimplementation and 1,024 postimplementation). The median number of lab tests ordered during the hospital stay decreased from three (interquartile range [IQR]=3) to two (IQR=3). The median total lab charges decreased from $445 (IQR=$291) to $312 (IQR=$497). Mean ED LOS decreased by 5.5 hours, and the proportion of patients with no blood lab orders increased from 22% to 40%. No increases in consultations or transfers were noted. No patients died at any point.

CONCLUSIONS

A policy that avoids routine laboratory screening tests for patients admitted to inpatient psychiatry can save money, improve patient care, and decrease LOS, without increasing adverse outcomes.

Emergency Department Evaluation of the Adult Psychiatric Patient

Many patients with acute behavioral or mental health emergencies use the emergency department for their care. Psychiatric patients have a higher incidence of chronic medical conditions and are at greater risk for injury than the general population. Patients with acute behavioral emergencies may stress already overcrowded emergency departments. This article addresses high-risk areas of the treatment and management of emergency department patients presenting with behavioral emergencies. This article identifies methods successful in determining whether the patient's behavioral emergency is the result of an organic disease process, as well as recognizing other potential acute medical emergencies in this high-risk population.

Emergency Department Medical Clearance of Patients with Psychiatric or Behavioral Emergencies, Part 1

Patients presenting to the emergency department with mental illness or behavioral complaints merit workup for underlying physical conditions that can trigger, mimic, or worsen psychiatric symptoms. However, interdisciplinary consensus on medical clearance is lacking, leading to wide variations in quality of care and, quite often, poor medical care. Psychiatry and emergency medicine specialty guidelines support a tailored, customized approach. This article summarizes best-practice approaches to the medical clearance of patients with psychiatric illness, tips on history taking, system reviews, clinical or physical examination, and common pitfalls in the medical clearance process.

American Association for Emergency Psychiatry Task Force on Medical Clearance of Adults Part I: Introduction, Review and Evidence-Based Guidelines

Introduction

In the United States, the number of patients presenting to the emergency department (ED) for a mental health concern is significant and expected to grow. The breadth of the medical evaluation of these patients is controversial. Attempts have been made to establish a standard evaluation for these patients, but to date no nationally accepted standards exist. A task force of the American Association of Emergency Psychiatry, consisting of physicians from emergency medicine and psychiatry, and a psychologist was convened to form consensus recommendations on the medical evaluation of psychiatric patients presenting to EDs.

Methods

The task force reviewed existing literature on the topic of medical evaluation of psychiatric patients in the ED (Part I) and then combined this with expert consensus (Part II).

Results

In Part I, we discuss terminological issues and existing evidence on medical exams and laboratory studies of psychiatric patients in the ED.

Conclusion

Emergency physicians should work cooperatively with psychiatric receiving facilities to decrease unnecessary testing while increasing the quality of medical screening exams for psychiatric patients who present to EDs.

Down the Rabbit Hole: Emergency Department Medical Clearance of Patients with Psychiatric or Behavioral Emergencies

Patients presenting with behavior or psychiatric complaints may have an underlying medical disorder causing or worsening their symptoms. Misdiagnosing a medical illness as psychiatric can lead to increased morbidity and mortality. A thorough history and physical examination, including mental status, are important to identify these causes and guide further testing. Laboratory and ancillary testing should be guided by what is indicated based on clinical assessment. Certain patient populations and signs and symptoms have a higher association with organic causes of behavioral complaints. Many medical problems can present with or exacerbate psychiatric symptoms, and a thorough medical assessment is imperative.

Children requiring psychiatric consultation in the pediatric emergency department: epidemiology, resource utilization, and complications

METHODS

A cohort of children younger than 18 years presenting to an urban pediatric emergency department (PED) who underwent psychiatric consultation was analyzed. A standardized data collection sheet was prospectively completed and included: patient characteristics, extent of medical evaluation and findings, ancillary diagnostic studies, resources utilized, dangerous behaviors, and disposition.

RESULTS

Two hundred ten patients required psychiatric evaluation. Median age was 14 years; 51.9% were boys; 71.9% had a past psychiatric history; 39.0% had prior psychiatric admission(s), and 40.5% were on psychiatric medications. The admission rate was 49.5%. Patients spent a median of 5.7 hours in the PED. Hospital police monitored 51.9% patients. Forty-five patients had 91 dangerous behaviors. Those patients presenting with a complaint of aggressive behavior (P = 0.00006), a past psychiatric history (P = 0.003), or a history of prior psychiatric hospitalization (P = 0.005) were more likely to have dangerous behaviors. Two hundred nine patients underwent a complete medical evaluation, and 207 were considered medically cleared. Patients who had diagnostic evaluations for medically indicated reasons were significantly more likely to have abnormal results than those requested by the psychiatric consultant for screening purposes (43.6% vs. 9.2%; relative risk, 2.33; 95% confidence interval, 1.33-4.08) but were not statistically more likely to result in medical intervention (5.4% vs. 0%, P = 0.243).

CONCLUSIONS

PED patients requiring psychiatric consultation and psychiatric admission had a prolonged PED stay and a high incidence of dangerous behaviors requiring intervention. History and physical examination adequately identified medical illness. Laboratory evaluation obtained for psychiatric transfer or admission purposes was of low yield.

Medical screening in the emergency department for psychiatric admissions: a procedural analysis

Patients who are admitted to psychiatric inpatient wards often undergo a medical screening examination in the emergency department to rule out serious or underlying medical conditions that may be better treated elsewhere. Unfortunately, prior research has been conflicting on the relative merits of various screening procedures, making it difficult to implement guidelines. A systematic review of the literature was undertaken to research the current state of knowledge in medical screening procedures. Electronic searches were conducted in PubMed, MEDLINE, and the Cochrane Library for publication years 1966-2003. No restrictions were placed on language or on quality of publications. Twelve studies were found that reported specific yields of various screening procedures. Results indicate that medical history, physical examination, review of systems, and tests for orientation have relatively high yields for detecting active medical problems in patients presenting with psychiatric complaints. Routine laboratory investigations generally have a low yield for clinically significant findings. However, these should be added selectively for four groups at higher risk of serious medical conditions, i.e., the elderly, substance users, patients with no prior psychiatric history, and patients with preexisting medical disorders and/or concurrent medical complaints.

Medical clearance of psychiatric patients

Patients with primarily psychiatric complaints commonly present to emergency departments. The challenges to emergency medicine physicians are to distinguish functional from organic disease and to address any underlying medical comorbidities. The key elements of this medical "clearance" evaluation of psychiatric patients are discussed. The tremendous importance of the history and physical examination are highlighted, as is judicious use of laboratory and radiographic testing. Toxicology testing is specifically addressed.

Laboratory findings in acute schizophrenia. Relevance to medical management on emergency admission

This study documents the prevalence of abnormal laboratory findings in schizophrenic patients who were admitted, because of acute disease, to a psychiatric intensive care unit in Japan. Patient laboratory data were evaluated retrospectively prior to treatment. Of 259 male acute schizophrenic patients (ICD-10: F2 group), nearly 10% were dehydrated, 33% had hypokalemia and leukocytosis, and 66% showed elevated serum muscle enzymes. This prevalence was statistically significant compared with that of psychiatric outpatients (F1 group). In addition, these medical problems in the F2 group were as frequent as those in the F1 group, i.e., alcohol and/or psychoactive substance abusers (ICD-10), although the problems in the F2 group occurred less often than in the F1 group. Current medication, obvious complications, or the presence of alcohol and/or psychoactive substance abuse in the F2 group were not major causes of these results. The medical problems significantly improved after 8 hours of fluid therapy. These findings strongly suggest the significance of medical management for acute schizophrenic patients on emergency admission as well as for alcohol and/or psychoactive substance abusers.

Medical clearance and screening of psychiatric patients in the emergency department

OBJECTIVES

To study the frequency of medical complaints and need for routine ED medical, laboratory, and toxicologic clearance for patients presenting with psychiatric chief complaints.

METHODS

A retrospective, observational analysis of psychiatric patients seen in an urban teaching hospital ED over a 2-month period was performed. The individual sensitivities of history, physical examination, vital signs, and complete blood counts and chemistry panels for identifying medical problems were determined. The sensitivities and predictive values of patient self-reporting of recent illicit drug and ethanol use were also determined.

RESULTS

352 patients were seen with psychiatric chief complaints. A complete data set was available for 345 patients (98%). Of those with complete data, 65 (19%) had medical problems of any type. History, physical examination, vital signs, and laboratory testing had sensitivities of 94%, 51%, 17%, and 20%, respectively, for identifying these medical problems. Screening without universal laboratory testing would have missed 2 asymptomatic patients with mild hypokalemia. Patient self-reporting had a 92% sensitivity, a 91% specificity, an 88% positive predictive value (PPV), and a 94% negative predictive value (NPV) for identifying those with a positive drug screen, and a 96% sensitivity, an 87% specificity, a 73% PPV, and a 98% NPV for identifying those with a positive ethanol level.

CONCLUSION

The vast majority of medical problems and substance abuse in ED psychiatric patients can be identified by initial vital signs and a basic history and physical examination. Universal laboratory and toxicologic screening of all patients with psychiatric complaints is of low yield.

Characteristics of psychogeriatric patient visits to a general hospital emergency room

OBJECTIVE

This study describes psychogeriatric patients who visit the Emergency Room (ER) in a teaching hospital with a comprehensive psychogeriatric service.

METHOD

A survey assessing demographic and clinical characteristics was completed for every psychiatric ER patient during a 2-year period.

RESULTS

One hundred and seventy-three ER patients aged over 60 (mean age 71.2) were assessed. Fifty-three percent were previously known to the psychogeriatric service. The majority of these previously known psychogeriatric patients who used the ER suffered from mood disorders. The majority of new psychogeriatric patients seen in the ER had an organic brain syndrome (OBS).

CONCLUSIONS

Few OBS patients who visited the ER were previously known to the psychogeriatric service, but many new OBS patients accessed the psychogeriatric service via the ER. For patients with mood disorders, particularly if suicidal, the ER was used as part of their service delivery system.

Prospective evaluation of emergency department medical clearance

STUDY OBJECTIVE

To analyze a standardized medical evaluation of alert, adult emergency department patients with new psychiatric symptoms.

DESIGN

Prospective, descriptive case series.

SETTING

Urban, county hospital.

PARTICIPANTS

One hundred consecutive, alert patients, aged 16 to 65 years, seen over 9 months, with new psychiatric symptoms. Excluded patients included those with obvious alcohol or drug intoxication, psychiatric patients with previously diagnosed abnormal behavior, psychiatric patients with medical complaints, and overdose or suicide patients.

INTERVENTIONS

The following evaluation was performed: medical history, physical examination, complete blood count, SMA-7 (electrolytes, blood urea nitrogen, creatinine, and glucose), prothrombin time, calcium, oxygen saturation, creatine phosphokinase (CPK) if there was possible myoglobulinuria, alcohol level, urine drug screen (for cocaine, amphetamine, and phencyclidine), cranial computed tomography, lumbar puncture if febrile, and psychiatric evaluation when appropriate. Results were considered significant when they diagnosed the cause of the symptoms or resulted in medical admission.

RESULTS

Sixty-three of the 100 patients had an organic etiology of their symptoms. The medical history was significant in 27, physical examination in 6, CBC in 5, SMA-7 in 10, CPK in 6, alcohol and drug screen in 28, computed tomography scan in 8, and lumbar puncture in 3.

CONCLUSION

Most alert, adult patients with new psychiatric symptoms have an organic etiology. We recommend performing a medical history, physical examination, SMA-7, calcium, CPK if there is possible myoglobinuria, alcohol and drug screens, computed tomography scan, and lumbar puncture as part of the medical clearance of these patients.

Emergency medical evaluation of psychiatric patients

STUDY OBJECTIVES

To determine the completeness of documentation and accuracy of medical evaluation for a sample of emergency psychiatric patients.

DESIGN

Descriptive, retrospective chart review.

SETTING

Nine hundred-bed community teaching hospital with a voluntary psychiatric inpatient unit.

TYPE OF PARTICIPANTS

Two hundred ninety-eight emergency department patients with psychiatric chief complaints, all of whom were admitted to the voluntary psychiatric unit of the same community teaching hospital.

INTERVENTIONS

None

MEASUREMENTS AND MAIN RESULTS

There was failure to document mental status at triage in 56% of patients. The most frequent process deficiencies in the medical evaluation were in the neurological examination. Twelve patients (4%) required acute medical treatment within 24 hours of psychiatric admission, and the ED history and physical examination should have identified an acute condition in 83%. The chart was documented "medically clear" in 80% of patients in whom medical disease should have been identified. Patients less than 55 years old had a four times greater chance of a missed medical diagnosis.

CONCLUSION

Process deficiencies in the medical history and physical examination accounted for the vast majority of missed acute medical conditions. The statement "medically clear" is inaccurate and should be replaced by a thorough discharge note.

Concurrent medical illness in the schizophrenic patient. Epidemiology, diagnosis, and management

The management of the medically ill schizophrenic patient presents a dual dilemma for the physician. The patient may have a serious medical illness that must be diagnosed and effectively treated, yet the patient's psychiatric disorder may interfere with effective management. Thus, undiagnosed and untreated medical illness can result in significant morbidity for schizophrenic patients. Because schizophrenic patients may appear to be less cooperative than medical patients without concurrent psychiatric illness, they can cause countertransference reactions on the part of physicians and nursing staff that can interfere with treatment. Schizophrenic patients also have deficits in the processing of sensory information. These deficits require the staff to make changes in management in order to facilitate the patient's ability to cooperate with treatment and to give reliable informed consent. A host of other factors complicate the medical management and treatment of schizophrenic patients. Such factors include medication side effects of psychotropic medication, the potential interactions between medications used to treat the patient's physical illness with psychotropics, pregnancy in the female patient, and the strength of the patient's support system. The ability to successfully diagnose and treat concurrent medical illness in the schizophrenic patient will depend on the physician's ability to be flexible and to understand the implications of the patient's underlying disorder for his relationship to hospital staff. This paper reviews some of the relevant literature and describes possible treatment strategies integrating what we know about schizophrenia with medical management.

Medical clearance: fact or fiction in the hospital emergency room

Prior medical clearance is an important variable in the psychiatric assessment of the emergency room patient. An analysis of documentation of prior physical examinations on a consecutive series of 137 patients seen in a general hospital emergency room and referred for psychiatric consultation revealed wide variance in physical examinations. The authors discuss the implications of incomplete physical examinations for psychiatry and offer proposals for standardization of this important aspect of patient evaluation.

Geriatric psychiatry in the emergency department, II: Evaluation and treatment of geriatric and nongeriatric admissions

The records of a hospital psychiatric emergency department were reviewed for elderly and middle-aged patients who were diagnosed with organic brain syndrome (OBS) or psychiatric disorder. These records were then compared with those of elderly patients from the medical emergency department. While elderly medical patients received routine physical evaluations and laboratory testing, elderly psychiatric patients with behavioral symptoms were often referred to psychiatry before they received tests necessary to differentiate physical disorders from functional psychiatric disorders. When tests were administered to psychiatric patients, many abnormal results were apparent, indicating the possible presence of physical disease. It is recommended that all elderly patients with psychiatric symptoms undergo adequate medical evaluations to screen for physical causes of the psychiatric symptoms.

Diagnosis of organic brain syndrome: an emergency department dilemma

Delirium and dementia frequently pose a diagnostic dilemma for clinicians in the emergency department. The overlap of symptoms between organic brain syndrome and functional psychiatric illness, coupled with a dramatic presentation, often leads to a premature psychiatric diagnosis. In this paper, the authors discuss those symptoms of organic brain syndrome that most frequently generate diagnostic confusion in the emergency department and result in a misdiagnosis of functional illness.

The psychiatric clinical specialist's impact on psychiatric emergency services

Psychiatric emergency services have evolved into more comprehensive programs during the past two decades. With this evolution other disciplines have gained access to the services and integrated their expertise and philosophy into the daily care of patients. Nursing has been an integral part of this process and contributed its perspective in nursing care. This paper outlines the development of psychiatric emergency services with a special emphasis on the contribution of nursing specialists who have developed their role within the psychiatric emergency service. What has been unique about the nursing contribution is the attention to individualizing patient care and modifying treatment approaches to meet the patients' needs and interests in psychiatric treatment. Additionally, nursing has complemented the physician's role by developing expertise in assessment that is both psychologically and biologically oriented. Nursing's future contribution to psychiatric emergency services should address mechanisms for tracking patients who enter the psychiatric emergency service system with an emphasis on linkage with other programs or resolution of the crisis episode.