Hypoglycemia as a complication of intravenous insulin to treat hyperkalemia in the emergency department

Introduction

Complications associated with the emergency department (ED) management of hyperkalemia are not well characterized. The goals of this study were to describe the frequency of hypoglycemia following the use of insulin to shift potassium intracellularly and to examine the association of key variables with this complication.

Structure and function of the emergency department: matching emergency department choices to the emergency department mission

Emergency caregivers experience considerable new challenges to the provision of competent, compassionate care. The good news is there are ample new approaches and new technologies to meet those new challenges.ED leaders who understand the ED mission and the resources available today and who engage vigorously in the change process will turn that mission into immensely beneficial action.     

Pneumonia in the emergency department

Pneumonia remains one of the most common reasons for admission of emergency department (ED) patients to the hospital. Pneumonia also remains one of the most common causes of death in our patients. As with many emergent conditions, the ED management of these patients initiated by ED physicians contributes greatly to the survival and successful management of these patients. Specifically, the recognition of severe pneumonias, precise choice of diagnostic tests, and appropriate antibiotics can have an impact on the outcome.     

Hypertension in the emergency department

Hypertensive emergencies are now rare and are recognized by the deleterious effect on end-organs. Prompt, efficacious treatment is critical, and the current drug of choice for most episodes is sodium nitroprusside. Hypertensive urgencies are more common than are emergencies, and are distinguished by diastolic pressures greater than 115 mm Hg without end-organ dysfunction. Although there are many efficacious agents, one excellent choice is nifedipine.     

Oligoanalgesia in the emergency department

A review of the charts of 198 patients who were admitted through the emergency department with a variety of acutely painful medical and surgical conditions revealed that 56% received no analgesic medication while in the emergency department. In the 44% of patients who received pain medication, 69% waited more than 1 hour while 42% waited more than 2 hours before narcotic analgesia was administered. In addition, 32% initially received less than an optimal equianalgesic dose of narcotic when compared with morphine. This study demonstrates that narcotic misues, in the form of oligoanalgesia, is prevalent and is the shared responsibility of both emergency physicians and housestaff consultants.     

Thoracentesis in the emergency department

Presented is a review of thoracentesis, a procedure with which the emergency physician should be familiar. The pathophysiology of pleural effusions is described and is followed by a review of the clinical presentation and diagnosis. Special attention is given to technique and interpretation of results.     

Dentistry in the emergency department

Dental problems are commonly seen in the emergency department. Although most emergency physicians have had little formal training in dentistry, the majority of these problems can be diagnosed and treated without the need for emergent dental consultation. The necessary procedures may require initial instruction by a cooperative consultant but are easily learned and well within the scope of practice of the emergency physician. Time invested in familiarization with the diagnosis and treatment of the more common dental problems will be rewarded with patient satisfaction.     

Hyperpyrexia in the emergency department

The differential diagnosis of the hyperpyrexic patient in the emergency department is extensive. It includes sepsis, heat illness including heat stroke, neuroleptic malignant syndrome, malignant hyperthermia, serotonin syndrome and thyroid storm. Each of these possible diagnoses has distinguishing features that may help to differentiate one from another. However, establishing the correct diagnosis is a challenge in the setting of the obtunded emergency patient who gives no history and where there may be limited access to any past medical or drug history. This paper presents such a case and reviews the features of the differential diagnoses and management of the hyperpyrexic patient.     

Urolithiasis in the emergency department

Urolithiasis commonly presents to the emergency department with acute, severe, unilateral flank pain. Patients with a suspected first-time stone or atypical presentation should be evaluated with a noncontrast computed tomography scan to confirm the diagnosis and rule out alternative diagnoses. Narcotics remain the mainstay of pain management but in select patients, nonsteroidal anti-inflammatories alone or in combination with narcotics provide safe and effective analgesia in the emergency department. Whereas most kidney stones can be managed with pain control and expectant management, obstructing kidney stones with a suspected proximal urinary tract infection are urological emergencies requiring emergent decompression, antibiotics, and resuscitation.     

Headache in the emergency department

Non-traumatic headache is an unusual presenting complaint in emergency medicine, representing only 1.4% of all patients seen over 45 consecutive days at the Royal Hobart Hospital Department of Emergency Medicine. Computerised tomographic (CT) scanning was used to assist diagnosis in 28% of cases, with nearly half (47%) of CT scans positive. Twenty three percent of patients were admitted to hospital. Emergency physicians are reminded that patients with headache commonly have serious underlying pathology.     

Hyponatremia in the emergency department

Hyponatremia is a clinical manifestation of a wide variety of diseases, some of which have high mortality rates. To assess the prevalence, cause, and prognosis of hyponatremia encountered in the emergency department, we conducted a prospective study at a major hospital in southern Taiwan. We included all adult internal medicine patients treated in the emergency department during a 2-month period. Hyponatremia was defined as a serum sodium level below 134 mEq/L, and cases patients were followed till being discharged. Among the 3,784 patients included, 166 case patients were identified. Most (65%) case patients were hypovolemic, and the overall mortality rate was 17.9%. The mortality rate increased as the sodium level decreased, but was not related to gender, age, cause, or serum potassium level. When 21 hyperglycemic patients whose serum sodium levels went beyond 134 mEq/L after the adjustment for blood sugar levels were excluded, the prevalence of true hyponatremia was 3.83%. The most common underlying diseases were those of the gastrointestinal system. It is concluded that hyponatremia is a common condition encountered in the emergency department. The mortality is correlated with the serum sodium level, and adjustment of the level is required in hyperglycemic patients to make a correct diagnosis. Unlike the cases in some other clinical settings, almost all cases of hyponatremia encountered in the emergency department were not iatrogenic and had recognizable underlying diseases. Therefore, more effort is generally required to identify the cause of hyponatremia cases in the emergency department.     

Hypnosis in the emergency department

Five cases are presented wherein hypnosis was used by the emergency physician either as the primary mode of treatment or as an adjuvant to standard medical care. Common hypnotic phenomena (eg, anesthesia, analgesia), as well as novel effects, are reported. The technique used for trance induction and utilization is briefly outlined, and criteria are set forth for the bedside recognition of hypnotic trance.