NUR 242 Exam 2 Newest 2026 Questions and
Correct Detailed Answers Already Graded A+
A nurse enters a room where a patient who has a respirator infection was present
for several hours. The nurse inhales small particles that remain in the air and
develops an infection. - CORRECT ANSWER-airborne transmission
What are the 3 types of body defenses? - CORRECT ANSWER-- barriers
(physical or chemical)
- nonspecific immunity
- specific immunity
What is the primary physical defense mechanism of the body? - CORRECT
ANSWER-the skin
List the 3 major functions of the skin: - CORRECT ANSWER-- reduce loss of
water
- protect against abrasion and microorganisms
- provide a permeable barrier against the environment
,What things diminish skin integrity? (6) - CORRECT ANSWER-- dry/cracked skin
- adhesive tape
- some chemicals
- unintentional injury
- intentional breaks in the skin
- insect bites
List the parts of the chain of infection (in order): - CORRECT ANSWER--
infectious agent
- reservoir
- portal of exit
- mode of transmission
- portal of entry
- susceptible host
infectious agent - CORRECT ANSWER-something that contains bacteria, fungi,
virus, parasite(s), or prion(s)
reservoir - CORRECT ANSWER-the habitat of the infectious agent and is where
it lives, grows, and reproduces itself or replicates
,animate examples: people, insects, birds, animals
inanimate examples: contaminated soil, water, food, medical equipment, IV
fluids, feces
portal of exit - CORRECT ANSWER-the means by which the infectious agent
can leave the reservoir
examples: any body orifice (ears, nose, or mouth), the skin, or blood or body
fluids that leave the body through coughing, sneezing, etc.
mode of transmission - CORRECT ANSWER-how a bacteria, virus, fungus,
parasite, or prion moves from place to place
contact transmission - CORRECT ANSWER-occurs when microorganisms move
from an infected person to another person
droplet transmission - CORRECT ANSWER-occurs when airborne droplets from
the respiratory tract of a client travel through the air and into the mucosa of a
host
, can be from sneezing, coughing, singing, and talking
medical procedures like CPR and intubation can release droplets into the air
airborne transmission - CORRECT ANSWER-occurs when small particulates
move into the airspace of another person and carry infectious agents
these patients should be placed in a private room with negative air pressure
(circulates the air outside of the building)
portal of entry - CORRECT ANSWER-provides a place for an infectious agent to
enter the individual so it can replicate or its toxin can act
examples: any body orifice or the skin
List factors that increase host susceptibility (8): - CORRECT ANSWER-- age
- underlying disease (like HIV/AIDS)
- malignancy
- transplants
Correct Detailed Answers Already Graded A+
A nurse enters a room where a patient who has a respirator infection was present
for several hours. The nurse inhales small particles that remain in the air and
develops an infection. - CORRECT ANSWER-airborne transmission
What are the 3 types of body defenses? - CORRECT ANSWER-- barriers
(physical or chemical)
- nonspecific immunity
- specific immunity
What is the primary physical defense mechanism of the body? - CORRECT
ANSWER-the skin
List the 3 major functions of the skin: - CORRECT ANSWER-- reduce loss of
water
- protect against abrasion and microorganisms
- provide a permeable barrier against the environment
,What things diminish skin integrity? (6) - CORRECT ANSWER-- dry/cracked skin
- adhesive tape
- some chemicals
- unintentional injury
- intentional breaks in the skin
- insect bites
List the parts of the chain of infection (in order): - CORRECT ANSWER--
infectious agent
- reservoir
- portal of exit
- mode of transmission
- portal of entry
- susceptible host
infectious agent - CORRECT ANSWER-something that contains bacteria, fungi,
virus, parasite(s), or prion(s)
reservoir - CORRECT ANSWER-the habitat of the infectious agent and is where
it lives, grows, and reproduces itself or replicates
,animate examples: people, insects, birds, animals
inanimate examples: contaminated soil, water, food, medical equipment, IV
fluids, feces
portal of exit - CORRECT ANSWER-the means by which the infectious agent
can leave the reservoir
examples: any body orifice (ears, nose, or mouth), the skin, or blood or body
fluids that leave the body through coughing, sneezing, etc.
mode of transmission - CORRECT ANSWER-how a bacteria, virus, fungus,
parasite, or prion moves from place to place
contact transmission - CORRECT ANSWER-occurs when microorganisms move
from an infected person to another person
droplet transmission - CORRECT ANSWER-occurs when airborne droplets from
the respiratory tract of a client travel through the air and into the mucosa of a
host
, can be from sneezing, coughing, singing, and talking
medical procedures like CPR and intubation can release droplets into the air
airborne transmission - CORRECT ANSWER-occurs when small particulates
move into the airspace of another person and carry infectious agents
these patients should be placed in a private room with negative air pressure
(circulates the air outside of the building)
portal of entry - CORRECT ANSWER-provides a place for an infectious agent to
enter the individual so it can replicate or its toxin can act
examples: any body orifice or the skin
List factors that increase host susceptibility (8): - CORRECT ANSWER-- age
- underlying disease (like HIV/AIDS)
- malignancy
- transplants
