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Micro-Lab
Effectiveness of Hand Scrubbing
Question | Answer |
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What is a surgeon trying to accomplish with a 10 minute scrub with a brush followed by an antiseptic? | Scrubbing is an attempt to dislodge as many microbes as possible. An antiseptic is used to kill as many of the remaining microbes as possible. |
Normal microbiota vs transient microbiota | Differences: Normal microbiota-colonize on/in the body. Transient microbiota- present for a brief period of time, depending on the local conditions and competing microorganisms. Similarities: Neither cause disease. |
Liquid soap vs bar soap | Bar soap can provide a culture medium for bacteria. Bacteria are less likely to gain access to liquid soap. |
Most of the normal microbiota and transient microbiota aren't harmful, then why must hands be scrubbed before surgery? | Because any microbe that enters a normally sterile location or a compromised host can be harmful. |
soap product and container outlets vs pump bottles | Microbiota from skin can contaminate soap products or container outlets that are touched. Bacteria can grow in these soaps. Pump bottle are the least likely to get contaminated. |