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False positive blood culture is one of the most frustrating and discouraging condition for many medical personnel and micro-biologists. The culture leads to uncertainties in diagnosing under the clinical management and it comes with high costs of health care resulting from unnecessary tests and treatments (Department of Health, 2007).


The addressing of this issue will decrease the false blood cultures in emergency rooms reducing the costs that come with it and create conducive environments for students and other medical personnel to work in.

The high rates of contamination are common in pediatrics patients and they are assorted with, to inherent difficulties to phlebotomy in young patients. To reduce this risk, the specimens of blood culture are got simultaneously together with intravenous catheter placement in emergency rooms (Pratt et al., 2007).


Contamination of blood is more serious in infants and young children due to various reasons. This is the population mostly affected by contaminated blood cultures and the risk comes with occurrences of bacterimia which have led to use of blood cultures accompanied with empirical therapy and more especially to this vulnerable population. Lately, the bacterimia level has gone down due to pneumococcal and influenza vaccinations that are offered to infants and children. In attempting to reduce discomfort that is unnecessary, pediatricians do use the intravenous catheters to get cultures instead of using the peripheral venipuncture (Pratt et al., 2007).

Intervention Strategy

During our intervention strategy that involved a research to determine the contamination rates, we attempted an intervention before and an intervention after the observational study of the sick that had a positive blood culture as part of their every day emergency department course for collection of specimen. There was standardization of inoculation that remained uninterrupted throughout the study. The study was private in that no staff members got to know what was happening and every positive blood culture observed there was review of the patients’ medical records. Those with conditions of ventricular catheters and central venous lines did not form part of the study (Donnino, Goyal, Terlecki, Donnino, Miller, Otero, & Howell, 2007).


The results that we obtained showed that, out of the 5000 blood cultures that were evaluated, among them being 2800 during the base line and 2200 in the phase of post-intervention, there was a significant drop of false positive blood cultures rate from 10% to around 3%. The young generation was found to be the most vulnerable to the risk of contamination in both periods of base line and post-intervention.

We also found out that, some of those obtained for the specimen, 40 of them grew a pathogen and out of the contaminated ones, majorities were cultured.

The conclusion that we came up with is that, the contamination rates of blood culture were low when specimen were got from a different site as compared to when they are got through an intravenous catheter that was newly inserted (Weinstein, Lee, Mirrett & Barth, 2007).

Our study aimed at addressing a common problem that is more associated with wastage of resources. The rates of contamination in the emergency department resisted the change despite the many specific interventions that we attempted to explain the issue. The increase baseline is associated with being more orderly in selecting the blood cultures that was done during the intervention stage, when all cultures were got due to diagnostic tests were got during the evaluations on emergency department of the patients.

If I would have changed the intervention method used, I would use different figures of the specimen, for the base line and the post intervention periods and may be this time I would make the research a public thing and inform the nurses and the rest of the staff members about the research (Madeo & Barlow, 2008).

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