Chapter 29 & 32 Key Terms Flashcards
For the Foundations quiz on 10/21/13
aerobic
bacteria that require oxygen to live and grow; most common
anaerobic
bacteria that can live without oxygen
antibody
immunoglobin produced y the body in response to a specific antigen
antigen
foreign material capable of inducing a specific immune response
antimicrobial
antibacterial agent that kills bacteria or suppresses their growth
asepsis
absence of disease-producing microorganisms; using methods to prevent infection
bacteria
most frequent and commonly observed infection-causing agents in healthcare institutions
disinfection
process used to destroy microorganisms; destroys all pathogenic organisms except spores
endemic
something that occurs with predictability in one specific region or population and can appear in a different geographical location
endogenous
infection in which the causative organism comes from microbial life the person himself or herself harbors
exogenous
infection in which the causative organism is acquired from outside the host
fungi
plant-like organisms (molds and yeasts) that can cause infection
healthcare-associated infection (HAI)
an infection that was not present on admission to the hospital and develops during the course of treatment for other conditions (nosocomial)
host
animal or person on or within in which microorganisms live
iatrogenic
infection that occurs as a result of a treatment or diagnostic procedure
infection
disease state that results from the presence of pathogens in or on the body
isolation
protective procedure designed to prevent the transmission of specific microorganisms; also called protective aseptic techniques and barrier techniques
medical asepsis
practices designed to reduce the number and
nosocomial
something origination or taking place in the hospital (i.e., infection)
pathogens
disease producing microorganisms
personal protective equipment
(PPE) gloves, gowns, masks and protective eye gear designed to minimize or prevent the healthcare worker’s exposure to infectious material
reservoir
natural habitat for the growth and multiplication of microorganisms
standard precautions
CDC precautions used in the care of all patients regardless of their diagnosis or possible infection status; this category combines universal and body substance precautions
sterilization
(1) the process by which all microorganisms, including spores, are destroyed; (2) surgical procedure performed to render a person infertile
surgical asepsis
practices that render and keep objects and areas free from microorganisms; synonym for sterile technique
transmission-based precautions
CDC precautions used in patients known or suspected to be infected with pathogens that can be transmitted by airborne, droplet, or contact routes; used in addition to Standard Precautions
vector
nonhuman carriers, such as mosquitoes, ticks, and lice, that transmit organisms from one host to another
virulence
ability to produce disease
virus
smallest of all microorganisms; can be seen only by using an electron microscope
bandage
piece of gauze or other material used to cover a wound
debridement
cleaning away devitalized tissue and foreign matter from a wound
dehiscence
separation of the layers of a surgical wound; may be partial, superficial, or a complete disruption of the surgical wound
dermis
layer of the skin below the epidermis
desiccation
dehydration; the process of being rendered free from moisture
dressing
protective covering placed over a wound
epidermis
superficial layer of the skin
eschar
a thick, leathery scab or dry crust that is necrotic and must be removed for adequate healing to occur
evisceration
protrusion of viscera through an incision
exudate
fluid that accumulates in a wound; may contain serum, cellular debris, bacteria, and white blood cells
fistula
an abnormal passage from an internal organ to the skin or from one internal organ to another
friction
occurs when two surfaces rub against each other; the resulting injury resembles an abrasion and can also damage superficial blood vessels directly under the skin
granulation tissue
new tissue that is pink/red in color and composed of fibroblasts and small blood vessels that fill and open wound when it starts to heal
ischemia
deficiency of blood in a particular area
maceration
softening through liquid; overhydration
necrosis
death of cells and tissue
negative-pressure wound therapy (NPWT)
activity that promotes wound healing and wound closure through the application of uniform negative pressure on the sound bed, reduction in bacteria in the wound, and the removal of excess wound fluid
pressure ulcer
any lesion caused by unrelieved pressure that results in damage to underlying tissue
purulent drainage
comprised of white blood cells, liquefied, dead tissue debris, and both dead and live bacteria
sanguineous drainage
contained with a mixture with blood
scar
connective tissue that fills a wound area
serosanguineous drainage
mixture of serum and red blood cells
serous drainage
composed of clear, serous portion of the blood and from serous membranes
shear
results when one layer of tissue slides over another layer. It separates the skin from underlying tissues.
subcutaneous tissue
underlying layer that anchors the skin layers to the underlying tissues of the body
wound
injury that results in a disruption in the normal continuity of a body tissue