title: Effect of a medical student emergency ultrasound clerkship on number of emergency department ultrasounds.
abstract: OBJECTIVE
  To determine whether a medical student emergency ultrasound clerkship has an effect on the number of patients undergoing ultrasonography and the number of total scans in the emergency department.
  
  
  METHODS
  We conducted a prospective, single-blinded study of scanning by emergency medicine residents and attendings with and without medical students. Rotating ultrasound medical students were assigned to work equally on all days of the week. We collected the number of patients scanned and the number of scans, as well as participation of resident and faculty.
  
  
  RESULTS
  In seven months 2,186 scans were done on the 109 days with students and 707 scans on the 72 days without them. Data on 22 days was not recorded. A median of 13 patients per day were scanned with medical students (CI 12-15) versus seven (CI 6-9) when not. In addition, the median number of scans was 18 per day with medical students (CI 16-20) versus eight (CI 6-10) without them.
  
  
  CONCLUSIONS
  There were significantly more patients scanned and scans done when ultrasound medical students were present.
authors.affiliation: University of California, Irvine School of Medicine, Department of Emergency Medicine, Orange, CA.
authors.forename: J Christian
authors.initials: JC
authors.lastname: Fox
authors.forename: Craig L
authors.initials: CL
authors.lastname: Anderson
authors.forename: Suleman S
authors.initials: SS
authors.lastname: Ahmed
authors.forename: Joanne
authors.initials: J
authors.lastname: McDonough
authors.forename: Warren
authors.initials: W
authors.lastname: Wiechmann
authors.forename: Michael
authors.initials: M
authors.lastname: Waters
authors.forename: Graciela
authors.initials: G
authors.lastname: Barajas
authors.forename: Shahram
authors.initials: S
authors.lastname: Lotfipour
references.citation: Acad Emerg Med. 2003 Apr;10(4):404-5
references.pmid: 12670860
references.citation: Am J Emerg Med. 2000 Jan;18(1):41-5
references.pmid: 10674530
references.citation: Acad Emerg Med. 2002 Aug;9(8):835-9
references.pmid: 12153891
references.citation: Acad Emerg Med. 2000 Sep;7(9):1008-14
references.pmid: 11043996
references.citation: Acad Emerg Med. 1998 Jan;5(1):58-63
references.pmid: 9444344
references.citation: J Trauma. 1995 Jun;38(6):879-85
references.pmid: 7602628
references.citation: Acad Emerg Med. 2003 Feb;10(2):180-3
references.pmid: 12574018
references.citation: Acad Emerg Med. 2003 Jan;10(1):37-42
references.pmid: 12511313
references.citation: J Surg Res. 1996 Jun;63(1):275-9
references.pmid: 8661210
references.citation: Ann Emerg Med. 2001 Oct;38(4):469-70
references.pmid: 11574809
references.citation: Acad Emerg Med. 2000 Feb;7(2):162-8
references.pmid: 10691075
references.citation: Ann Emerg Med. 1994 Jan;23(1):95-102
references.pmid: 8273966
references.citation: Ann Emerg Med. 2004 Jun;43(6):756-69
references.pmid: 15159710