🦠microbiology review

Bacteremia

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Bacteremia is the presence of bacteria in the bloodstream, which can lead to serious systemic infections and potentially sepsis. It often arises from infections in other parts of the body or invasive medical procedures.

5 Must Know Facts For Your Next Test

  1. Bacteremia can originate from infections such as urinary tract infections, skin infections, or dental procedures.
  2. Symptoms of bacteremia may include fever, chills, hypotension, and an elevated heart rate.
  3. Common pathogens causing bacteremia include Staphylococcus aureus, Escherichia coli, and Streptococcus pneumoniae.
  4. Prompt diagnosis and treatment with appropriate antibiotics are crucial to prevent complications like septic shock.
  5. Blood cultures are essential for diagnosing bacteremia and identifying the causative organism.

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