| Blood withdrawn through a cannula valve connector does not result in clinically significant haemolysis. | |
| | |
MedLine Citation:
|
PMID: 20629698 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
OBJECTIVE: To assess the impact of cannula valve connectors on haemolysis of blood samples drawn from newly inserted cannulae. METHODS: In a semi-blinded, randomized study paired blood samples, with and without cannula valve connector, were obtained from patients within the ED and tested for haemolysis, defined as haemolysis index of greater than 120 mg/dL. Patients were randomized as to which sample was collected first. Cannula size was standardized and vacutainer systems provided consistent draw pressures. Time taken for the tube to fill was recorded as a measure of blood flow. RESULTS: Two hundred and ninety patients were randomized, with six subsequently excluded from analysis because of samples being lost or insufficient for testing. Average patient age was 60.8 years and 52.5% were male. There were no significant differences between the randomization groups. The overall rate of haemolysis was 2.6%, being 2.8% in the valve first group and 2.5% in the no valve first group (P = 1.0). Time for collection averaged 7.7 s in the valve first group and 7.5 s in the no-valve first group (P = 0.22). Mean serum potassium level was 4.4 mmol/L in both groups (P = 0.46). The rate of hyperkalaemia was not different between valve first and no-valve first groups (12.7% and 13.7%, respectively, P = 1.0). CONCLUSION: The attachment of a cannula connector valve to a peripheral cannula prior to blood sampling is not associated with an increase in the rate of haemolysis or hyperkalaemia. |
| | |
Authors:
|
Richard Paoloni; Mehrdad Taghizadeh; Dorothy Kouzios; Margaret Janu |
Related Documents
:
|
1442498 - Quantification of mitral regurgitation with the proximal flow convergence method: a cli... 8212968 - Does aortic regurgitation affect transmitral flow? an echo-doppler study. 18466908 - In vitro hemodynamic investigation of the embryonic aortic arch at late gestation. 9581738 - Quantitation of mitral regurgitation using the systolic/diastolic pulmonary venous flow... 9077008 - Studies on mosquitoes (diptera: culicidae) and anthropic environment. 11--biting activi... 15094478 - Contribution of somatosensory cortex to evoked cerebellar blood flow responses. |
Publication Detail:
|
Type: Journal Article; Randomized Controlled Trial |
Journal Detail:
|
Title: Emergency medicine Australasia : EMA Volume: 22 ISSN: 1742-6723 ISO Abbreviation: Emerg Med Australas Publication Date: 2010 Aug |
Date Detail:
|
Created Date: 2010-08-27 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101199824 Medline TA: Emerg Med Australas Country: Australia |
Other Details:
|
Languages: eng Pagination: 310-5 Citation Subset: IM |
Affiliation:
|
Emergency Department, Concord Hospital, Sydney, New South Wales, Australia. rpao@bigpond.net.au |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Can e-learning improve medical students' knowledge and competence in paediatric cardiopulmonary resu...
Next Document: Analysis of junior doctor supervision in Australasian emergency departments.