title: Implementation of prehospital dispatch protocols that triage low-acuity patients to advice-line nurses.
abstract: BACKGROUND
  Although EMS agencies have been designed to efficiently provide medical assistance to individuals, the overuse of 9-1-1 as an alternative to primary medical care has resulted in the need for new methods to respond to this increasing demand. Our study analyzes the efficacy of classifying specific low-acuity calls that can be transferred to an advice-line nurse for further medical instruction. The objectives of our study were to analyze the impact of implementing this protocol and resultant patient feedback regarding the transfer to an advice-line nurse.
  
  
  METHODS
  We collected data for retrospective review from April 2011 to April 2012 from a single municipal EMS agency with an average annual call volume of approximately 90,000. Medical Priority Dispatch System response codes were assigned to calls based on patient acuity. Patients classified under Omega response codes were assessed for eligibility of transfer to nurse advice lines. Exclusion criteria included the following: if the call was placed by a third-party caller; if the patient refused to be transferred to the advice-line nurse; anytime the MPDS system was not used; if the patient was referred from a skilled nursing facility, school, or university nursing office, or physician's office. Telephone surveys were conducted for those patients who spoke to an advice-line nurse and did not receive an ambulance response 24 hours after calling 9-1-1 to obtain patient feedback.
  
  
  RESULTS
  The database included 1660 patients initially classified as Omega and eligible for transfer to an advice-line nurse. After applying the exclusion criteria, 329 (19.8%) patients were ultimately transferred to an advice-line nurse and 204 (12.3%) received no ambulance response. Of those patients who were not transported by ambulance 118 (57.8%), patients completed telephone follow-up, with 104 (88.1%) reporting the nontransport option met their health-care needs and 108 (91.5%) responding they would accept the transfer again for a similar complaint.
  
  
  CONCLUSIONS
  We identified an average of two patients per day as eligible for transfer to the nurse advice line, with less than one patient successfully completing the Omega protocol per day. While impact was limited, there was a decrease in ambulance response.
authors.affiliation: University of North Carolina -Charlotte, Charlotte, North Carolina, USA.
authors.forename: Allison
authors.initials: A
authors.lastname: Infinger
authors.forename: Jonathan R
authors.initials: JR
authors.lastname: Studnek
authors.forename: Eric
authors.initials: E
authors.lastname: Hawkins
authors.forename: Barry
authors.initials: B
authors.lastname: Bagwell
authors.forename: Doug
authors.initials: D
authors.lastname: Swanson
mesh_terms: D000208:Acute Disease; D004631:Emergency Medical Service Communication Systems; D004632:Emergency Medical Services; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009657:North Carolina; D024802:Nurse's Role; D011785:Quality Assurance, Health Care; D012189:Retrospective Studies; D014218:Triage; D000078329:Workforce