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Blood Cultures

Why are blood cultures taken?. To CONFIRM or RULE OUT diagnosis ofSEPSIS. Sepsis.

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Blood Cultures

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    1. Blood Cultures Catherine Price, BSc, LIBMS Biomedical Scientist Microbiology Department Royal Gwent Hospital Wales, UK

    2. Why are blood cultures taken? To CONFIRM or RULE OUT diagnosis of SEPSIS

    3. Sepsis “Septicaemia” or “Blood poisoning” Life threatening condition Medical emergency

    4. SIRS + presence of multiplying bacteria / yeast in blood = SEPSIS Diagnosis of Sepsis

    5. Systemic Inflammatory Response Syndrome (SIRS) Acute inflammation throughout entire body 2 or more of the following symptoms: Body temperature: <36ºC (97ºF) or >38ºC (100ºF) (chills or fever) WBC count: <4 x 109 cells/L or >12 x 109 cells/L Rapid heart beat: >90 beats per minute Rapid breathing rate: >20 breaths per minute

    6. Sepsis SIRS and presence of multiplying bacteria /yeast in bloodstream Nutrients consumed Oxygen used up Toxins released - tissue damage, organ failure, septic shock Patient will develop: chills, fever, decreased urine output, confusion, low blood pressure, collapse

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