Taking Blood Cultures From A Peripheral Vein

The taking of blood cultures is an important investigation which we use to detect bacteraemia in our patient. Good technique is essential to eliminate the risk of contamination from skin flora. The following are among the indicators that you will consider when assessing for signs of bacteraemia or sepsis.


  • Pyrexia >38ºC
  • Focal signs of infection
  • Abnormal heart rate (raised), blood pressure (low or raised or respiratory rate (raised)
  • Chills or rigors
  • Raised or very low white blood cell count
  • New or worsening confusion


Check out our detailed instructional video below, for all you need to know about correct technique for taking blood culture from a peripheral vein!

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