NR224 EXAM 1CURRENTLY UPDATED 2024/2025
QUESTIONS WITH CORRECT DETAILED ANSWERS
FROM A VERIFIED SOURCE |100% GUARANTEED
PASS CONCEPT!! GRADED A+
Infection - ANSWER-The invasion of a susceptible host by pathogens or microorganisms, resulting in
disease
Chain of Infection - ANSWER-Portal of entry, host, infectious agent, reservoir, portal of exit, mode of
transmission, and then back to portal of entry, and it continues in a cycle.
Reservoir - ANSWER-A place where microorganisms survive, multiply, and await transfer to a susceptible
host
Transmission Through Direct Contact - ANSWER-Person to person
Person to source
,Transmission Through Indirect Contact - ANSWER-Person to inanimate object
Transmission Through Droplet - ANSWER-Coughing, sneezing, talking (large particle only 3ft)
Colonization - ANSWER-Occurs when a microorganism invades the host but does not cause infection.
You may get colonized and not realize you are carrying an infection
Asymptomatic - ANSWER-Clinical signs and symptoms are not present in an infection
Types of Infecting Agents - ANSWER-Bacteria, Fungus, Protozoa, or Virus
isease - ANSWER-The infectious disease transmitted from one person to another, easily
spreadCommunicable D
Most Important Way to Prevent Infection - ANSWER-Hand Hygiene
Transmission Through Airborne - ANSWER-Droplet nuclei or residue suspended in air or carried on dust
particles
Transmission Through Vehicles - ANSWER-Food, water, drugs and solutions, blood, fomites (organic
something)
,Transmission Through Vector - ANSWER-External transfer
Internal transmission (parasitic)
Mosquito, louse, flea, tick
Immunocompromised - ANSWER-Having an impaired immune system
Virulence - ANSWER-The ability to produce disease, how strong the disease is, the intensity of the
disease
Aerobic Bacteria - ANSWER-Requires oxygen for survival and for multiplication sufficient to cause
disease
Anaerobic Bacteria - ANSWER-Thrive where little or no oxygen is available
Bacteriostasis - ANSWER-Prevention of growth and reproduction of bacteria
Bactericidal - ANSWER-Destructive to bacteria
Four Stages of Infection - ANSWER-1. Incubation Period
2. Prodromal Stage
3. Illness Stage
4. Convalescence
, Incubation Period - ANSWER-The first stage of the infectious process. It is the time interval between
entrance of the pathogen and appearance of the first symptoms.
Prodromal Stage - ANSWER-The second stage of the infectious process. It is the interval between onset
of nonspecific symptoms to more specific symptoms. You don't feel well, but you aren't sure why
Illness Stage - ANSWER-The third stage of the infectious process. The interval when a patient manifests
signs and symptoms specific to the type of infection. You have the illness and can confirm what it is
Convalescence - ANSWER-The interval when acute symptoms of infection disappear, you start feeling
better.
Localized Infection - ANSWER-Patient experiences symptoms in one specific area, the infection is in one
spot. There is no fever (fever means it's systemic)
Systemic Infection - ANSWER-An infection that affects the entire body, it can be fatal if not detected or
untreated.
Normal Flora - ANSWER-Microorganisms that reside normally in our body. They help resist infection by
releasing antibacterial substances and inhibiting multiplication of pathogenic microorganisms
Body Defense Mechanisms Against Infection - ANSWER-Normal flora, intact skin, mucus membranes,
cilli in respiratory system, fever, inflammation, vascular and cellular response, and tissue repair
QUESTIONS WITH CORRECT DETAILED ANSWERS
FROM A VERIFIED SOURCE |100% GUARANTEED
PASS CONCEPT!! GRADED A+
Infection - ANSWER-The invasion of a susceptible host by pathogens or microorganisms, resulting in
disease
Chain of Infection - ANSWER-Portal of entry, host, infectious agent, reservoir, portal of exit, mode of
transmission, and then back to portal of entry, and it continues in a cycle.
Reservoir - ANSWER-A place where microorganisms survive, multiply, and await transfer to a susceptible
host
Transmission Through Direct Contact - ANSWER-Person to person
Person to source
,Transmission Through Indirect Contact - ANSWER-Person to inanimate object
Transmission Through Droplet - ANSWER-Coughing, sneezing, talking (large particle only 3ft)
Colonization - ANSWER-Occurs when a microorganism invades the host but does not cause infection.
You may get colonized and not realize you are carrying an infection
Asymptomatic - ANSWER-Clinical signs and symptoms are not present in an infection
Types of Infecting Agents - ANSWER-Bacteria, Fungus, Protozoa, or Virus
isease - ANSWER-The infectious disease transmitted from one person to another, easily
spreadCommunicable D
Most Important Way to Prevent Infection - ANSWER-Hand Hygiene
Transmission Through Airborne - ANSWER-Droplet nuclei or residue suspended in air or carried on dust
particles
Transmission Through Vehicles - ANSWER-Food, water, drugs and solutions, blood, fomites (organic
something)
,Transmission Through Vector - ANSWER-External transfer
Internal transmission (parasitic)
Mosquito, louse, flea, tick
Immunocompromised - ANSWER-Having an impaired immune system
Virulence - ANSWER-The ability to produce disease, how strong the disease is, the intensity of the
disease
Aerobic Bacteria - ANSWER-Requires oxygen for survival and for multiplication sufficient to cause
disease
Anaerobic Bacteria - ANSWER-Thrive where little or no oxygen is available
Bacteriostasis - ANSWER-Prevention of growth and reproduction of bacteria
Bactericidal - ANSWER-Destructive to bacteria
Four Stages of Infection - ANSWER-1. Incubation Period
2. Prodromal Stage
3. Illness Stage
4. Convalescence
, Incubation Period - ANSWER-The first stage of the infectious process. It is the time interval between
entrance of the pathogen and appearance of the first symptoms.
Prodromal Stage - ANSWER-The second stage of the infectious process. It is the interval between onset
of nonspecific symptoms to more specific symptoms. You don't feel well, but you aren't sure why
Illness Stage - ANSWER-The third stage of the infectious process. The interval when a patient manifests
signs and symptoms specific to the type of infection. You have the illness and can confirm what it is
Convalescence - ANSWER-The interval when acute symptoms of infection disappear, you start feeling
better.
Localized Infection - ANSWER-Patient experiences symptoms in one specific area, the infection is in one
spot. There is no fever (fever means it's systemic)
Systemic Infection - ANSWER-An infection that affects the entire body, it can be fatal if not detected or
untreated.
Normal Flora - ANSWER-Microorganisms that reside normally in our body. They help resist infection by
releasing antibacterial substances and inhibiting multiplication of pathogenic microorganisms
Body Defense Mechanisms Against Infection - ANSWER-Normal flora, intact skin, mucus membranes,
cilli in respiratory system, fever, inflammation, vascular and cellular response, and tissue repair
