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The microbiological swab sampler--a quantitative experimental investigation.
Acta Pathologica Et Microbiologica Scandinavica. Section B, Microbiology
|December 1, 1978
Summary
Using cotton swabs for bacterial wound sampling is common. Rinsing swabs in saline transfers more bacteria than using Stuart transport medium, improving quantitative bacterial determination.
Area of Science:
- Microbiology
- Clinical Diagnostics
Background:
- Accurate bacterial quantification from wound swabs is crucial for effective treatment.
- Cotton swabs are widely used for sample collection in clinical settings.
Purpose of the Study:
- To evaluate the efficiency of cotton swabs in quantitative bacterial transfer from wounds.
- To compare different swab handling methods for optimal bacterial recovery.
Main Methods:
- An in vitro model using Staphylococcus transfer from inoculated to non-inoculated agar plates.
- Testing direct swab transfer, saline rinsing, and Stuart transport medium preservation.
Main Results:
- Direct transfer yielded 19% staphylococci recovery.
- Saline rinsing increased recovery to 39%.
- Stuart transport medium significantly reduced recovery to 4%.
Conclusions:
- Stuart transport medium hinders quantitative bacterial determination from wound swabs.
- A saline rinsing procedure is recommended for improved bacterial recovery and accurate wound sample analysis.