NUR 215 Fundamentals Exam 2 -
modules 3, 4 & 5
Chain of Infection - answer1. Infectious Agent
2. Reservoir
3. Portal of Exit
4. Mode of Transmission
5. Portal of Entry
6. Susceptible Host
infectious agent - answer Microorganism that lives on it in the human body without
causing harm
Reservoir - answer where pathogens live and multiply
Portal of exit - answer Through body fluids (coughing, sneezing, diarrhea, IV lines)
mode of transmission - answer Direct or indirect contact ( touching, kissing, touching a
contaminated surface)
portal of entry - answer the opening where an infectious disease enters the host's body (
eyes, mouth, wound, vagina, etc)
Susceptible host - answera person likely to get an infection or disease (older, younger,
weak immune system)
Local infection - answerCause harm to a limited region of the body (single bone, joint,
urethra, etc.) (primary)
primary infection - answerfirst infection that occurs in a patient
systemic infection - answeran infection throughout the body that invades the blood or
lymph (secondary)
secondary infection - answerfollows a primary infection
exogenous - answeracquired from the health care environment
Endogenous - answerArises from the patients normal flora
acute infection - answerrapid onset, short duration
modules 3, 4 & 5
Chain of Infection - answer1. Infectious Agent
2. Reservoir
3. Portal of Exit
4. Mode of Transmission
5. Portal of Entry
6. Susceptible Host
infectious agent - answer Microorganism that lives on it in the human body without
causing harm
Reservoir - answer where pathogens live and multiply
Portal of exit - answer Through body fluids (coughing, sneezing, diarrhea, IV lines)
mode of transmission - answer Direct or indirect contact ( touching, kissing, touching a
contaminated surface)
portal of entry - answer the opening where an infectious disease enters the host's body (
eyes, mouth, wound, vagina, etc)
Susceptible host - answera person likely to get an infection or disease (older, younger,
weak immune system)
Local infection - answerCause harm to a limited region of the body (single bone, joint,
urethra, etc.) (primary)
primary infection - answerfirst infection that occurs in a patient
systemic infection - answeran infection throughout the body that invades the blood or
lymph (secondary)
secondary infection - answerfollows a primary infection
exogenous - answeracquired from the health care environment
Endogenous - answerArises from the patients normal flora
acute infection - answerrapid onset, short duration
