NU 204 EXAM 1 FINAL STUDY GUIDE 2025/2026
ACCURATE QUESTIONS WITH CORRECT DETAILED
ANSWERS || 100% GUARANTEED PASS RECENT
VERSION
Description (100 Words):
This study guide is designed for students preparing for NU 204 Exam 1, focusing on
foundational concepts in nursing practice, patient care, and clinical assessment. Topics include
basic anatomy and physiology, vital signs, infection control, patient safety, communication,
documentation, and nursing process application. The guide provides accurate, exam-style
questions with detailed explanations to reinforce understanding, critical thinking, and
practical skills. Case-based scenarios and practical examples help students apply knowledge
to real-world patient care situations. Structured review ensures students are confident,
prepared, and capable of achieving success on NU 204 Exam 1, building a strong foundation
for future nursing coursework.
Key Terms:
NU 204, Exam 1, Nursing Fundamentals, Patient Care, Vital Signs, Infection Control, Nursing
Process, Communication, Documentation, Patient Safety, Clinical Assessment
The body's three main lines of defenses ------- ✔ CORRECT ANSWER ✓✓1. Normal Flora - 1st line
of defense
2. Inflammatory Response - 2nd line of defense
3. Immune Response - 3rd line of defense
Normal Flora ------- ✔ CORRECT ANSWER ✓✓-1st line of defense
a group of microorganisms (e.g., bacteria, fungi, protozoa) that live in or on the body but do not
cause disease. These benign microorganisms are found in and on the skin, eyes, nose, mouth,
upper throat, lower urethra, small intestine, and large intestine. The normal flora constitutes
the body's first line of defense against infection because it inhibits pathogenic microorganisms
from colonizing healthy individual
,inflammatory response ------- ✔ CORRECT ANSWER ✓✓-second line of defense
-Inflammation is a local response to cellular injury or infection that includes capillary dilation
and leukocyte infiltration.
-produces redness, heat, pain, and swelling. The leukocytes release a chemical that increases
the temperature in the area. The dilation, infiltration, and increase in temperature are
protective mechanisms that help the body neutralize, control, and eliminate invading
pathogens, preventing them from surviving and multiplying. If inflammation becomes systemic,
signs include fever (caused by prostaglandins acting on the hypothalamus), chills, malaise, and
altered mental status. Inflammation causes the body to mount the third defense, which is the
immune response.
Effects: Capillary Dilatation Increased Capillary Permeability Exudate (Pus)
Immune response ------- ✔ CORRECT ANSWER ✓✓- 3rd line of defense
-inflammation activates the immune response, which is the body's attempt to protect itself from
foreign and harmful substances. The immune response is initiated by recognition of antigens.
An antigen is any substance that provokes an adaptive immune response. Antigens include
protein molecules on the surface of pathogens and nonliving substances such as toxins,
chemicals, drugs, or particles. The immune system recognizes and destroys substances that
contain foreign antigens.
Types of Immunity ------- ✔ CORRECT ANSWER ✓✓- innate the innate (nonspecific) immune
system-provides immediate defense against foreign antigens. ( born with)
- The adaptive (acquired or specific) component of the immune system provides long-term
immunity when the body is exposed to an antigen. Humoral (antibody-mediated) and cellular
(cell-mediated) immunity are two types of adaptive immunity.
-Passive immunity -occurs when a person receives an antibody produced in another body.
Passive immunity provides immediate but short-term protection against antigens. Infants
,acquire passive immunity naturally in utero or through breast milk; these antibodies disappear
between the ages of 6 and 12 months. Passive immunity can be acquired artificially when
antibodies are transferred from one person to another by injection of an antibody-rich serum
(e.g., immunoglobulin).
innate immunity ------- ✔ CORRECT ANSWER ✓✓- BORN with
-provides immediate defense against foreign antigens. The skin, cough reflex, mucus, enzymes
on the skin and in tears, and acid in the gastrointestinal tract prohibit harmful substances from
entering the body. In addition to acting as a barrier to infectious agents, the innate immune
system produces chemical mediators that fight infection, remove foreign substances, and
activate the adaptive immune system.
adaptive Immunity (acquired or specific) ------- ✔ CORRECT ANSWER ✓✓The adaptive (acquired
or specific) component of the immune system provides long-term immunity when the body is
exposed to an antigen.
- Long-term active immunity can be artificially acquired by immunization with vaccines.
two types of adaptive immunity.
1.Humoral (antibody-mediated)
2.cellular (cell-mediated) immunity
Humoral Immunity ------- ✔ CORRECT ANSWER ✓✓--type of adaptive immunity
- a defense system that involves WBCs (B lymphocytes) that produce antibodies in response to
antigens or pathogens circulating in the lymph and blood. Antibodies are immunoglobulin
molecules that recognize foreign invaders. The antigen-antibody reaction initiates a complex
chain of events to protect the body from the invading microorganism.
Humoral immunity enables production of inflammatory molecules such as interferon and
interleukin-1, which cause fever. If a pathogen gets past the innate response, it is attacked by
, the adaptive immune system, which generates antigen-specific antibodies and lymphocytes
(Huether, McCance, & Brasher. 2020).
Cellular Immunity ------- ✔ CORRECT ANSWER ✓✓- type of adaptive immunity
Cellular immunity involves defense by WBCs against any microorganisms that the body does not
recognize as its own. T lymphocytes, such as cytotoxic T cells, directly attack cells displaying
nonself antigens (e.g., infected cells). Helper T cells release interleukins and other substances
that stimulate antibody production by B cells and antigen destruction by other cells (e.g.,
macrophages).
Humoral vs Celluar ------- ✔ CORRECT ANSWER ✓✓Humoral immunity uses B-cells and
antibodies to fight extracellular pathogens (outside cells) by tagging them for destruction, while
cellular immunity uses T-cells to directly kill infected cells or abnormal cells, targeting
intracellular threats like viruses or cancer cells.
Passive Immunity ------- ✔ CORRECT ANSWER ✓✓occurs when a person receives an antibody
produced in another body. Passive immunity provides immediate but short-term protection
against antigens. Infants acquire passive immunity naturally in utero or through breast milk;
these antibodies disappear between the ages of 6 and 12 months. Passive immunity can be
acquired artificially when antibodies are transferred from one person to another by injection of
an antibody-rich serum (e.g., immunoglobulin).
Body Systems fight infection ------- ✔ CORRECT ANSWER ✓✓-The integumentary - 1.Skin is a
barrier that is impermeable to most infectious microorganisms.
2.The skin contains squamous epithelial cells, which help remove microorganisms and other
infectious agents.
3.Sweat decreases the likelihood of infection because its low pH inhibits bacterial growth
-respiratory 1.cilia and mucus which move or trap foreign bodies
2. Proteins with antimicrobial properties and promote phagocytosis
ACCURATE QUESTIONS WITH CORRECT DETAILED
ANSWERS || 100% GUARANTEED PASS RECENT
VERSION
Description (100 Words):
This study guide is designed for students preparing for NU 204 Exam 1, focusing on
foundational concepts in nursing practice, patient care, and clinical assessment. Topics include
basic anatomy and physiology, vital signs, infection control, patient safety, communication,
documentation, and nursing process application. The guide provides accurate, exam-style
questions with detailed explanations to reinforce understanding, critical thinking, and
practical skills. Case-based scenarios and practical examples help students apply knowledge
to real-world patient care situations. Structured review ensures students are confident,
prepared, and capable of achieving success on NU 204 Exam 1, building a strong foundation
for future nursing coursework.
Key Terms:
NU 204, Exam 1, Nursing Fundamentals, Patient Care, Vital Signs, Infection Control, Nursing
Process, Communication, Documentation, Patient Safety, Clinical Assessment
The body's three main lines of defenses ------- ✔ CORRECT ANSWER ✓✓1. Normal Flora - 1st line
of defense
2. Inflammatory Response - 2nd line of defense
3. Immune Response - 3rd line of defense
Normal Flora ------- ✔ CORRECT ANSWER ✓✓-1st line of defense
a group of microorganisms (e.g., bacteria, fungi, protozoa) that live in or on the body but do not
cause disease. These benign microorganisms are found in and on the skin, eyes, nose, mouth,
upper throat, lower urethra, small intestine, and large intestine. The normal flora constitutes
the body's first line of defense against infection because it inhibits pathogenic microorganisms
from colonizing healthy individual
,inflammatory response ------- ✔ CORRECT ANSWER ✓✓-second line of defense
-Inflammation is a local response to cellular injury or infection that includes capillary dilation
and leukocyte infiltration.
-produces redness, heat, pain, and swelling. The leukocytes release a chemical that increases
the temperature in the area. The dilation, infiltration, and increase in temperature are
protective mechanisms that help the body neutralize, control, and eliminate invading
pathogens, preventing them from surviving and multiplying. If inflammation becomes systemic,
signs include fever (caused by prostaglandins acting on the hypothalamus), chills, malaise, and
altered mental status. Inflammation causes the body to mount the third defense, which is the
immune response.
Effects: Capillary Dilatation Increased Capillary Permeability Exudate (Pus)
Immune response ------- ✔ CORRECT ANSWER ✓✓- 3rd line of defense
-inflammation activates the immune response, which is the body's attempt to protect itself from
foreign and harmful substances. The immune response is initiated by recognition of antigens.
An antigen is any substance that provokes an adaptive immune response. Antigens include
protein molecules on the surface of pathogens and nonliving substances such as toxins,
chemicals, drugs, or particles. The immune system recognizes and destroys substances that
contain foreign antigens.
Types of Immunity ------- ✔ CORRECT ANSWER ✓✓- innate the innate (nonspecific) immune
system-provides immediate defense against foreign antigens. ( born with)
- The adaptive (acquired or specific) component of the immune system provides long-term
immunity when the body is exposed to an antigen. Humoral (antibody-mediated) and cellular
(cell-mediated) immunity are two types of adaptive immunity.
-Passive immunity -occurs when a person receives an antibody produced in another body.
Passive immunity provides immediate but short-term protection against antigens. Infants
,acquire passive immunity naturally in utero or through breast milk; these antibodies disappear
between the ages of 6 and 12 months. Passive immunity can be acquired artificially when
antibodies are transferred from one person to another by injection of an antibody-rich serum
(e.g., immunoglobulin).
innate immunity ------- ✔ CORRECT ANSWER ✓✓- BORN with
-provides immediate defense against foreign antigens. The skin, cough reflex, mucus, enzymes
on the skin and in tears, and acid in the gastrointestinal tract prohibit harmful substances from
entering the body. In addition to acting as a barrier to infectious agents, the innate immune
system produces chemical mediators that fight infection, remove foreign substances, and
activate the adaptive immune system.
adaptive Immunity (acquired or specific) ------- ✔ CORRECT ANSWER ✓✓The adaptive (acquired
or specific) component of the immune system provides long-term immunity when the body is
exposed to an antigen.
- Long-term active immunity can be artificially acquired by immunization with vaccines.
two types of adaptive immunity.
1.Humoral (antibody-mediated)
2.cellular (cell-mediated) immunity
Humoral Immunity ------- ✔ CORRECT ANSWER ✓✓--type of adaptive immunity
- a defense system that involves WBCs (B lymphocytes) that produce antibodies in response to
antigens or pathogens circulating in the lymph and blood. Antibodies are immunoglobulin
molecules that recognize foreign invaders. The antigen-antibody reaction initiates a complex
chain of events to protect the body from the invading microorganism.
Humoral immunity enables production of inflammatory molecules such as interferon and
interleukin-1, which cause fever. If a pathogen gets past the innate response, it is attacked by
, the adaptive immune system, which generates antigen-specific antibodies and lymphocytes
(Huether, McCance, & Brasher. 2020).
Cellular Immunity ------- ✔ CORRECT ANSWER ✓✓- type of adaptive immunity
Cellular immunity involves defense by WBCs against any microorganisms that the body does not
recognize as its own. T lymphocytes, such as cytotoxic T cells, directly attack cells displaying
nonself antigens (e.g., infected cells). Helper T cells release interleukins and other substances
that stimulate antibody production by B cells and antigen destruction by other cells (e.g.,
macrophages).
Humoral vs Celluar ------- ✔ CORRECT ANSWER ✓✓Humoral immunity uses B-cells and
antibodies to fight extracellular pathogens (outside cells) by tagging them for destruction, while
cellular immunity uses T-cells to directly kill infected cells or abnormal cells, targeting
intracellular threats like viruses or cancer cells.
Passive Immunity ------- ✔ CORRECT ANSWER ✓✓occurs when a person receives an antibody
produced in another body. Passive immunity provides immediate but short-term protection
against antigens. Infants acquire passive immunity naturally in utero or through breast milk;
these antibodies disappear between the ages of 6 and 12 months. Passive immunity can be
acquired artificially when antibodies are transferred from one person to another by injection of
an antibody-rich serum (e.g., immunoglobulin).
Body Systems fight infection ------- ✔ CORRECT ANSWER ✓✓-The integumentary - 1.Skin is a
barrier that is impermeable to most infectious microorganisms.
2.The skin contains squamous epithelial cells, which help remove microorganisms and other
infectious agents.
3.Sweat decreases the likelihood of infection because its low pH inhibits bacterial growth
-respiratory 1.cilia and mucus which move or trap foreign bodies
2. Proteins with antimicrobial properties and promote phagocytosis
