Contamination of catheter-drawn blood cultures.
نویسندگان
چکیده
To assess the risk of contamination, we reviewed retrospectively 1,408 matched pairs of simultaneous catheter-drawn and venipuncture blood cultures. Catheter-drawn cultures were equally likely to be truly positive (14.4 versus 13.7%) but more likely to be contaminated (3.8 versus 1.8% [P = 0.001]). Direct venipuncture cultures are preferred.
منابع مشابه
Discarding the initial aliquot of blood does not reduce contamination rates in intravenous-catheter-drawn blood cultures.
Although venipuncture is the preferred method for obtaining blood cultures, specimens often are obtained from intravenous catheters (IVC). For IVC-drawn blood cultures, some authorities recommend discarding the initial 5 to 10 ml of blood to reduce contamination and remove potential inhibitory substances. To determine whether this practice reduced contamination rates (CR), we assessed the resul...
متن کاملContamination rates of blood cultures obtained by dedicated phlebotomy vs intravenous catheter.
CONTEXT Blood culture is the criterion standard for identifying children with bacteremia. However, elevated false-positive rates are common and are associated with substantial health care costs. OBJECTIVE To compare contamination rates in blood culture specimens obtained from separate sites vs through newly inserted intravenous catheters. DESIGN, SETTING, AND PARTICIPANTS Observational stud...
متن کاملIntravenous catheter blood cultures: utility and contamination.
OBJECTIVE In pediatrics, blood cultures (BCs) are often drawn as intravenous (IV) catheters are placed. This routine minimizes the number of painful and often difficult punctures a child must undergo but results in the discarding of multiple BC bottles when these cultures are later determined to be unnecessary. If the contamination rate of BCs drawn through an indwelling IV did not exceed the c...
متن کاملClinical utility of blood cultures drawn from central venous or arterial catheters in critically ill surgical patients.
OBJECTIVE To determine the sensitivity, specificity, and predictive values of cultures done with blood drawn through a central venous or arterial catheter compared with peripheral venipuncture. DESIGN Retrospective cohort study of critically ill surgical patients in whom samples for paired cultures were drawn through a central venous or arterial catheter and peripheral venipuncture. SETTING...
متن کاملآلودگی باکتریال کشت‌های خون مرکز طبی کودکان تهران - فروردین تا خرداد 1383
Background: Blood culture is the criterion standard for identifying children with bacteremia. However, elevated false-positive rates are common and are associated with substantial health care costs. The aims of this prospective study were to: 1) determine the rate of blood culture contamination 2) determine variety and frequency of contaminant bacteria 3) compare the duration of hospital stay a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of clinical microbiology
دوره 39 9 شماره
صفحات -
تاریخ انتشار 2001