June 5, 2013
Micro-lab Report #1
The Effects of Using 15 Seconds and 60 Seconds When Washing Hands on Different Bacteria
The human body contains resident and transient flora, both on and in the body. Resident flora is exactly what it says; it resides on or in the body. Typically this flora is on the surface of the skin, mucous membranes and respiratory tract. In a typical healthy body, resident flora causes no harm while feeding on cellular waste and dead cells (Bauman, 2013). “Transient flora are just visitors on and in the body, they may attempt to colonize but are unable to survive due to competition with resident flora, elimination of the body’s immune system and chemical and physical changes in the body” (Bauman, 2013). Once the body’s immune system is compromised in any way, whether it is from use of antibiotics, illness, surgery, or even just a cut in the skin allows for the resident and transient flora to colonize and cause problems for the human body. This is the reason why good hand washing is extremely important in any environment especially in the health care setting.
Nosocomial infections are hospital acquired infections related to a breach in hygiene barriers such as no hand washing before and after patient care and infections and diseases are transmitted from one patient to another (Pommerville, 2011). Nosocomial infections are infractions in the health care setting that can cause serious illness and even death which can be prevented by compliance of health care professionals to simply use proper hand washing.
The purpose of the experiment is to determine which method of hand washing is more successful at killing and removing the most bacteria from hands. The hypothesis of this experiment is that hand washing with soap and water for a longer period of time will remove and kill more bacteria.
Materials needed were 1 enriched agar plate per person, divided into halves labeled 15 seconds one half...
References: Bauman, R. (2013, April). Science Prof Online. Retrieved from Science Prof Online: http://www.sciencepofonline.org
Pommerville, J. C. (2011). Alcamo 's Fundamentals of Microbiology. Sudbury: Jones and Bartlett Publishers.
S.Hampton, F. C. (2005). Hand-washing and methicillin-resistant Staphylococcus aureus. British Journal of Nursing, 703-706.
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