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Blood culture

Sample type:

blood sample

Uses:

  • Bacteremia

  • Septicemia

  • Unexpected postoperative shock

  • Chills and fever in patient with UTI

  • Unexplained fever of more than several day’s duration

Precautions:

Handle the sample gently to prevent hemolysis

Interfering factor:

  • Blood cultures are subject to contamination, especially by skin bacteria. These organisms should therefore be identified in the laboratory.

  • Nonfilterable blood is usually due to the presence of abnormal proteins.

Pre-analytical errors:

  • Labeling specimens

  • Contaminations of the specimens

  • Preserving specimens

  • Transporting of the specimens

Corrective action:

  • Specimen should be labeled

  • Collection should be as aseptic as possible

  • Specimen should be transported quickly to prevent drying out.

Post-analytical errors:

  • Delayed report

  • Sent result to incorrect patient