A cross-sectional study to compare two blood collection methods: direct venous puncture and peripheral venous catheter
نویسندگان
چکیده
OBJECTIVES To demonstrate the equivalence between blood collection methods using direct venous puncture (DVP) and a peripheral venous catheter or cannula (PVC). DESIGN AND SETTING A cross-sectional study of simple crossover design with within-subject measures carried out between October 2011 and May 2012 at a regional hospital in Spain. PARTICIPANTS 272 patients aged 18 or older hospitalised or admitted to the short-stay unit (SSU) who required laboratory testing and PVC to administer saline solution, intravenous fluid therapy and/or intravenous medication. Excluded were those with PVC collection time exceeding 20 s, difficulty of venoclysis, or who presented with arteriovenous fistula, language difficulties, in critical condition or altered consciousness with no family to consent. PRIMARY AND SECONDARY OUTCOME MEASURES 18 variables were recorded for DVP and PVC, along with age, sex, diagnosis, vein location for DVP, location of the PVC, PVC calibre, saline syringe, intravenous fluid therapy, medication, haemolysis and clotted blood during DVP or PVC collection. Univariate analysis, Pearson's product-moment correlation coefficient (r), Lin's concordance correlation coefficient (rc) and Bland-Altman's 95% agreement interval were provided. RESULTS Included in the study were 272 patients, primarily aged 65 or older (80.9%), males (52.6%) and receiving intermittent medication (43.4%). Values obtained with both methods showed a positive linear association, being moderate for pO2 (r=0.405) and very high for all others (r>0.86). Levels were concordant (rc≥0.9), except for calcium (rc=0.860), pH (rc=0.853), pCO2 (rc=0.843) and pO2 (rc=0.336) and equivalent for all determinations except pCO2 and pO2, where clinically significant differences were found in more than 9% of cases (21.2%, 95% CI 16.6% to 26.5% and 73.1%, 95% CI 67.4% to 78.1%). CONCLUSIONS Blood collection methods using DVP and PVC can be used interchangeably for most routine laboratory tests.
منابع مشابه
Comparing the Effects of Chlorhexidine 2% and Iodopovidone-alcohol on Peripheral Venous Catheter Bacterial Colonization in Preterm Neonates
Background: Studies regarding cleansing the area with antiseptic solutions prior to catheterization in premature infants are limited. Therefore, the present study aimed to evaluate and compare the effects of chlorhexidine 2% and iodopovidone-alcohol solutions on bacterial colonization associated with the peripheral venous catheterization in premature infants. ...
متن کاملمقایسه نتایج آزمایشات بیوشیمیایی و هماتولوژیک خون در دو روش خونگیری معمول و خونگیری از کاتتر ورید محیطی
Background and purpose: Some patients need to repeat certain tests. However, despite a peripheral vein catheter in the patients usually phlebotomy is done. This study examined the biochemical and hematological test results of the two methods of usual blood sampling and blood sampling through peripheral vein catheter. Materials and methods: A case-control study was carried out in 96 patients ...
متن کاملPredisposing factors for peripheral intravenous puncture failure in children.
OBJECTIVE To identify predisposing factors for peripheral intravenous puncture failure in children. METHODS Cross-sectional cohort study conducted with 335 children in a pediatric ward of a university hospital after approval of the ethics committee. The Wald Chi-squared, Prevalence Ratio (PR) and backward procedure (p≤0.05) tests were applied. RESULTS Success of peripheral intravenous punct...
متن کاملSurvey of a Practical Approach to Central Venous Catheterization in Pediatric Patients
Background Central venous catheter (CVC) is used for measuring hemodynamic variables, transfusion of blood, fluids and medications when peripheral vascular lack sufficiency. Unfortunately CVC is associated with many complications ranging from anxiety and discomfort for the patient to severe mechanical side effects such as arterial lacerations, pleural and pericardial injury as well as infection...
متن کاملSkin fold technique for central venous catheter fixation; Comparison with conventional method for postopration infections
Background: Central Venous Catheters (CVCs) are used not only as a tool to access to central venous system, but also for hemodynamic monitoring, parenteral nutrition, chemotherapy and hemodialysis. The use of CVCs is associated with some complications notably infections that are troublesome both to patient and physician. We conducted this study to examine catheter fixation with skin fold techni...
متن کامل