Randomized, single blinded control trial comparing haemolysis rate between two cannula aspiration techniques

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dc.contributor.author Dwyer, D
dc.contributor.author Fry, M
dc.contributor.author Sommerville, A
dc.contributor.author Holdgate, A
dc.date.accessioned 2009-12-21T02:33:05Z
dc.date.issued 2006-01
dc.identifier.citation Emergency Medicine Australasia, 2006, 18 pp. 484 - 487
dc.identifier.issn 1742-6731
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/4384
dc.description.abstract Objective: Blood aspiration through i.v. cannulae is a common ED sampling method. It is, however, associated with increased haemolysis rates when compared with direct venipuncture. Our ED utilizes two common methods of sampling through cannulae. The aim of the present study was to examine the haemolysis rates for these two techniques. Methods: A randomized, single blinded prospective study was performed. From a convenience sample patients were randomized to either `Method one (blood taken directly from cannula hub) or `Method two (blood taken using an Interlink device through cannula cap). For each group patient demographics, clinical information and haemolysis were analysed. ?<sup>2</sup>-analysis and a multivariate logistic regression model were applied to determine significant relationships. Results: A total of 1390 patients were enrolled, 694 had blood collected by `Method one and 696 by `Method two, with haemolysis rates of 6.5% and 7.2%, respectively. Univariate analysis showed ease of aspiration to be the only variable to have a strong association with haemolysis ( P < 0.0001). After allowing for ease of aspiration the technique used did not significantly affect haemolysis rate ( P = 0.7). Conclusions: The rate of haemolysis is unrelated to the technique of blood aspiration. However, haemolysis rates increase significantly with perceived difficulty of blood draw.
dc.publisher Blackwell Publishing
dc.subject aspiration, cannula, haemolysis, technique, venipuncture, Emergency & Critical Care Medicine
dc.subject aspiration; cannula; haemolysis; technique; venipuncture; Emergency & Critical Care Medicine
dc.title Randomized, single blinded control trial comparing haemolysis rate between two cannula aspiration techniques
dc.type Journal Article
dc.parent Emergency Medicine Australasia
dc.journal.volume 18
dc.journal.number en_US
dc.publocation Carlton South, Australia en_US
dc.identifier.startpage 484 en_US
dc.identifier.endpage 487 en_US
dc.cauo.name FOH.Faculty of Health en_US
dc.conference Verified OK en_US
dc.for 1103 Clinical Sciences
dc.personcode 0000036643 en_US
dc.personcode 103222 en_US
dc.personcode 0000036644 en_US
dc.personcode 0000036640 en_US
dc.percentage 100 en_US
dc.classification.name Clinical Sciences en_US
dc.classification.type FOR-08 en_US
dc.description.keywords aspiration; cannula; haemolysis; technique; venipuncture en_US
dc.description.keywords aspiration
dc.description.keywords aspiration
dc.description.keywords cannula
dc.description.keywords cannula
dc.description.keywords haemolysis
dc.description.keywords haemolysis
dc.description.keywords technique
dc.description.keywords technique
dc.description.keywords venipuncture
dc.description.keywords venipuncture
dc.description.keywords aspiration
dc.description.keywords cannula
dc.description.keywords haemolysis
dc.description.keywords technique
dc.description.keywords venipuncture
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Health


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