Current prehospital protocols for the management of patients with altered mental status include the empiric administration of hypertonic glucose, naloxone, and thiamine. The injudicious use of 50% dextrose (D50W) may result in hyperosmolarity, a worsening of hypokalemia, and unwarranted additional health-care costs for the patient. The administration of D50W also may worsen the neurological outcome of patients with local or generalized ischemia.

To evaluate the ExacTech blood glucose meter's ability to estimate blood glucose levels accurately and rapidly.

Emergency medical technicians (EMTs) from selected advanced life support (ALS) units in the Portland, Ore., metropolitan area participated in a prospective clinical trial of the ExacTech blood glucose meter. A convenience sample, was drawn from emergency medical services (EMS) patients with suspected diabetic emergencies, altered mental status, and other neurological deficits. Venous blood samples were drawn from these populations at the same time as the ExacTech readings were obtained. The venous blood was submitted to the receiving hospitals for laboratory analysis of blood glucose levels, and a comparison was made between the results of the two methods.

A total of 80 matched sets of data were obtained from 1 April 1990 through 6 May 1991. The hospital blood glucose values ranged from 8 to 1233 mg/dl. Sixteen (20%) of the patients were hypoglycemic (<60 mg/dl) and 23 (28.8%) were hyperglycemic (>180 mg/dl). The ExacTech device sensitivity and specificity for hypoglycemia using venous samples were 94.6% and 89.2%, respectively. For hyperglycemia, these same parameters were 87.5% and 97.1%. Pearson's r over the range of the instrument (40–450 mg/dl) was 0.8656 (p <.001). If the prehospital “definition” of hypoglycemia (for threshold-to-treat) is raised to 65 mg/dl, the device has 100% sensitivity in the sample population.

The device functioned accurately and consistently in the prehospital environment over a wide range of temperatures, and in the hands of many different individuals.

Widely accepted guidelines for use of pharmacologic agents for prehospital intubation have not been fully developed. Toward the goal of formulating specific guidelines, this study sought to determine how well the Glasgow Coma Scale (GCS) score stratifies the need for emergent intubation (within 30 minutes of emergency department arrival or in the prehospital setting).

A one-year, retrospective review of the charts of blunt trauma patients with presumed head injury who presented to the emergency department of a Level 1 trauma center with a GCS score of ≤13 was performed. A total of 120 patients met the inclusion and exclusion criteria.

A significant number of patients presenting with a GCS score of ≤9 required emergent intubation. A significant minority of patients presenting with a GCS score of 10–13 required emergent intubation (20%) or had intracranial pathology on head CT scan (23%), and the majority of patients from this subgroup did not require subsequent intubation. Alcohol or substance intoxication and communication barriers such as deafness and language difficulties limited the clinical examination.

Patients with a presenting GCS score of ≤9 represent candidates for the use of pharmacologic agents to facilitate aggressive airway control by well-trained and supervised emergency medical technicians (EMTs). Emergent intubation of patients with a GCS score of 10–13 is problematic. Patients with a presenting GCS score of 10–13 must be evaluated individually and closely monitored. In the emergency department, head CT scans coupled with serial evaluations generally are warranted to assess underlying pathology in patients with a presenting GCS score of 10–13.

To determine the sensitivity of the Prehospital Index (PHI) in identifying patients with severe blood loss, a one-year review was conducted at a regional trauma facility.

The study population consisted of 217 consecutive trauma admissions (ages 3 to 88 years). Patients were managed using standard resuscitation techniques; blood transfusions were ordered at the discretion of attending physicians and did not follow any preplanned protocol. Medical records were examined to determine total blood requiremets for each patient during the first 12 hours of hospitalization, the emergency department (ED) disposition, and final outcome of treatment. The following clinical variables were analyzed (unpaired t-test) to determine their value as predictors of blood loss: age, gender, mechanism of injury, initial vital signs, revised trauma score, PHI, and injury severityscore.

Forty-two percent (92 patients) received transfusions during the first 12 hours of hospitalization. The best predictor of blood loss was the Prehospital Index. Of the total group, 45% had a PHI >3; 77% (75/98) of these patients required transfusion and received an average of 7.1 units of packed cells. Fifty-five percent (119/217) had a PHI ≤3; 86% (102/119) of these patients did not require transfusion.

The data suggest that patients with PHI scores >3 require close hemodynamic monitoring to rule out significant blood loss and may warrant immediate cross-matching on arrival to the ED.

The purpose of this study is to describe treatment of asthma in children by paramedics.

Retrospective review of an advanced life support (ALS) run reports over a one-year period.

Review of paramedic response to pediatric respiratory emergencies in an urban, primarily inner-city, prioritized, dual-response emergency medical services (EMS) system.

Patients < 19 years of age complaining of shortness of breath, paramedics, pediatric residents, and attending physicians.

The medical records of 383 patients were reviewed for demographic and medical information. The population was separated into an ALS treatment group (received ALS) and a NO-ALS group (evaluation and/or oxygen only). Sixty percent of the patients (n = 231) were classified into the ALS group; 89% received epinephrine. Sixty-six percent (n = 101) of the NO-ALS patients received evaluation only, and the remaining 34% (n = 51) were evaluated and received oxygen. The ALS patients were older and had significantly higher respiratory rates and accessory muscle use than did the NO-ALS patients. Relief was reported in 66 % of ALS patients. No adverse reactions were reported in the ALS group. Determining factors influencing ALS treatment included age, the use of medications at home, wheezing, accessory muscle use, respiratory rate, and presence or absence of upper respiratory infection (URI) symptoms.

This study demonstrates that asthma constitutes the majority of pediatric emergencies in the prehospital setting in this inner-city EMS system. The ALS treatment of pediatric asthma improves patient status. Factors which may influence paramedic judgment in treating asthma in children may be inappropriate. There is a critical need for further research in the prehospital treatment of pediatric asthma and in developing education interventions directed at the entire spectrum of prehospital care of pediatric emergencies.

To assess the effectiveness of the use of dobutamine hydrochloride in out-of hospital emergency situations.

Patients with severe circulatory insufficiency caused by acute illness or injury encountered by the Mobile Intensive Care Unit of Copenhagen (population 467,000) during a 15-month study period.

A newly developed dobutamine solution was administered by infusion pump to patients in whom normal emergency treatment failed to restore an acceptable circulatory state.

A total of 40 patients were treated with 4–48 μg dobutamine/kg/minute. The treatment was judged to be primary life-saving in 15 patients, the condition was improved in 16 patients, and nine patients died. Systolic blood pressures (in those who survived) rose from a mean value of 45 mmHg (range 0–80 mmHg) to 105 mmHg (range 65–180 mmHg). No tachycardia or arrhythmias were noted.

This newly developed dobutamine solution is very useful in prehospital treatment of patients with circulatory failure and is recommend for use by mobile intensive care unit teams.