click below
click below
Normal Size Small Size show me how
Key Terms
Chapter 2
Term | Definition |
---|---|
Aerobe | A microorganism that needs oxygen to live and grow |
Anaerobe | A microorganism that grows best in the absence of oxygen |
Antiseptic | An agent that inhibits the growth of or kills microorganisms |
Cilia | Slender, hairlike projections that constantly beat toward the outside to remove microorganisms from the body |
Hand hygiene | The process of cleaning or sanitizing the hands |
Infection | The condition in which the body, or part of it, is invaded by a pathogen |
Medical asepsis | Practices that are employed to inhibit the growth and hinder the transmission of pathogenic microorganisms to prevent the spread of infection |
Microorganism | A microscopic plant or animal |
Nonintact skin | Skin that has a break in the surface. It includes, but is not limited to, abrasions, cuts, hangnails, paper cuts, and burns |
Nonpathogen | A microorganism that does not normally produce disease |
Opportunistic infection | An infection that results from a defective immune system that cannot defend the body from pathogens normally found in the environment |
Optimum growth temperature | The temperature at which an organism grows best |
Parenteral | Taken into the body through piercing of the skin barrier or mucous membranes, such as through needlesticks, human bites, cuts, and abrasions |
Pathogen | A disease-producing microorganism |
Postexposure prophylaxis | Treatment administered to an individual after exposure to an infectious disease to prevent the disease |
Regulated medical waste | medical waste that poses a threat to health and safety |
Resident flora | Harmless, nonpathogrnic microorganisms that normally reside on the skin and usually do not cause disease. Also known as normal flora |
Transient flora | Microorganisms that reside on the superficial skin layers and are picked up in the course of daily activities. They are often pathogenic but can be removed easily from the skin by sanitizing the hands. |