title: Accuracy of fingerstick glucose values in shock patients.
abstract: BACKGROUND
  Fingerstick blood glucose measurement has become widespread in both hospital and prehospital settings.
  
  
  OBJECTIVE
  To determine the accuracy of fingerstick blood glucose measurement in patients with poor peripheral perfusion (shock).
  
  
  METHODS
  Results obtained during three methods of glucose analysis (fingerstick blood glucose measurement; bedside and laboratory glucose analysis) were examined prospectively on 38 patients from inpatient medical and surgical critical care units or the emergency department of a large tertiary care referral center.
  
  
  RESULTS
  The means of the three glucose measurements were significantly different. Univariate analysis of the mean laboratory glucose value versus the mean fingerstick glucose value was significantly different. The mean venipuncture glucose measured by the bedside glucose meter versus the mean venous laboratory glucose was not significantly different.
  
  
  CONCLUSIONS
  These results suggest that fingerstick blood samples should not be used for bedside glucose analysis in patients who may have inadequate tissue perfusion.
authors.affiliation: Pitt County Memorial Hospital, Greenville, NC.
authors.forename: H F
authors.initials: HF
authors.lastname: Sylvain
authors.forename: M E
authors.initials: ME
authors.lastname: Pokorny
authors.forename: S M
authors.initials: SM
authors.lastname: English
authors.forename: N H
authors.initials: NH
authors.lastname: Benson
authors.forename: T W
authors.initials: TW
authors.lastname: Whitley
authors.forename: C J
authors.initials: CJ
authors.lastname: Ferenczy
authors.forename: J G
authors.initials: JG
authors.lastname: Harrison
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D001786:Blood Glucose / Q000378:metabolism; D015190:Blood Glucose Self-Monitoring / Q000592:standards*; D001815:Bloodletting / Q000592:standards*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D015203:Reproducibility of Results; D012769:Shock / Q000097:blood*
chemical_list: D001786:Blood Glucose