title: [A comparison of the rates of hemolysis and repeated blood sampling using syringe needles versus vacuum tube needles in the emergency department].
abstract: OBJECTIVE
  This study was done to compare the rates of hemolysis and repeated sampling in blood samples obtained by a syringe needle versus a vacuum tube needle.
  
  
  METHODS
  A randomized, prospective study was used to evaluate the differences between the two blood sampling methods. The study group consisted of patients seen in the emergency department (ED) for blood sampling to determine electrolyte level. ED patients were randomly assigned to either the syringe group or the vacuum tube group. All blood samples were collected by experienced ED nurses and hemolysis was determined by experienced laboratory technologists. Data were analyzed using Fisher's exact test and binary logistic regression.
  
  
  RESULTS
  One hundred forty-five valid samples were collected (74 in the syringe group versus 71 in the vacuum tube group). 5 of 74 (6.8%) blood samples in the syringe group and 8 of 71 (11.3%) in the vacuum tube group hemolyzed. Repeated blood sampling occurred for 2 of 74 (2.7%) and 3 of 71 (4.2%) in each group respectively. There were no significant differences in rates of hemolysis and repeated sampling between two groups (B=1.97, p=.204; B=2.36, p=.345).
  
  
  CONCLUSIONS
  Venipuncture with syringe needles can be recommended for ED nurses to obtain blood samples.
authors.affiliation: Department of Clinical Nursing Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Young Hee
authors.initials: YH
authors.lastname: Sung
authors.forename: Moon Sook
authors.initials: MS
authors.lastname: Hwang
authors.forename: Jee Hyang
authors.initials: JH
authors.lastname: Lee
authors.forename: Hyung Doo
authors.initials: HD
authors.lastname: Park
authors.forename: Kwang Hyun
authors.initials: KH
authors.lastname: Ryu
authors.forename: Myung Sook
authors.initials: MS
authors.lastname: Cho
authors.forename: Young Hee
authors.initials: YH
authors.lastname: Yi
authors.forename: S
authors.initials: S
authors.lastname: Song
mesh_terms: D000328:Adult; D000368:Aged; D001800:Blood Specimen Collection / Q000295:instrumentation / Q000379:methods*; D004636:Emergency Service, Hospital; D005260:Female; D006461:Hemolysis; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D018962:Phlebotomy; D011446:Prospective Studies; D011795:Surveys and Questionnaires; D013594:Syringes