ATI TEAS 7 — Reading & Critical Thinking Practice Exam
Test of Essential Academic Skills Version 7 | 2026/2027 Practice — 45 Questions with Verified
Solutions
Domain 1: Key Ideas & Details (Questions 1–22)
Passage 1 — The Legacy of Florence Nightingale
Florence Nightingale is widely regarded as the founder of modern nursing. Born in 1820 into a
wealthy British family, she defied the social expectations placed upon women of her class by pursuing
a career in healthcare. During the Crimean War (1853–1856), Nightingale and a team of 38 nurses
traveled to Scutari, Turkey, where they found soldiers dying not primarily from combat injuries but
from infectious diseases exacerbated by overcrowded, unsanitary conditions.
Nightingale implemented rigorous hygiene protocols, including handwashing, clean linens, improved
ventilation, and proper waste disposal. She meticulously collected data on mortality rates, creating
pioneering statistical graphics—most notably her polar area diagram, often called a "coxcomb chart"—
to illustrate that most deaths were preventable. Within six months of her reforms, the mortality rate at
Scutari dropped from 42.7% to 2.2%, a transformation that stunned military authorities.
After returning to England, Nightingale established the Nightingale Training School for Nurses at St.
Thomas' Hospital in London in 1860. This institution formalized nursing education and set
professional standards that influenced healthcare systems worldwide. Her 1859 book, "Notes on
Nursing," became an essential text, emphasizing that nursing was both a science and an art requiring
observation, critical thinking, and compassion. Nightingale's emphasis on evidence-based practice
and environmental factors in patient recovery remains central to nursing philosophy today.
1. According to the passage, what was the primary cause of soldier deaths at Scutari
before Nightingale's reforms?
A. Combat injuries sustained during battle
B. Infectious diseases worsened by unsanitary living conditions
C. A shortage of trained medical personnel and surgical equipment
D. Malnutrition resulting from inadequate military supply chains
Rationale: The passage explicitly states that soldiers were dying "not primarily from combat
injuries but from infectious diseases exacerbated by overcrowded, unsanitary conditions."
Nightingale's data collection confirmed that environmental factors, not battle wounds, drove the
high mortality rate, which is why her sanitation reforms proved so effective.
2. Which of the following best summarizes the main idea of the passage?
A. Florence Nightingale was a wealthy woman who chose an unusual career for her social class.
B. Florence Nightingale's evidence-based reforms during the Crimean War
revolutionized nursing and established principles that persist in modern
healthcare.
C. The Crimean War created conditions that made it nearly impossible to provide adequate
medical care to soldiers.
, D. Statistical graphics and data collection were the most important contributions Florence
Nightingale made to the field of medicine.
Rationale: While the passage covers Nightingale's background, the war conditions, and her
statistical work, the overarching theme is how her evidence-based sanitation reforms during the
war and subsequent establishment of nursing education transformed healthcare. The passage
traces her impact from the Crimean War through the founding of her training school, showing
the lasting influence of her work on modern nursing practice.
3. The passage suggests that Nightingale's approach to healthcare was distinguished by
her reliance on which of the following?
A. Traditional medical treatments inherited from earlier generations of physicians
B. Data collection and statistical analysis to demonstrate the effectiveness of her
interventions
C. Political lobbying and advocacy for government healthcare funding
D. Religious and spiritual principles to guide patient care decisions
Rationale: The passage emphasizes that Nightingale "meticulously collected data on mortality
rates" and created statistical graphics to demonstrate her results. Her emphasis on "evidence-
based practice" is highlighted as a core component of her philosophy. While she may have drawn
on traditional knowledge, the passage specifically underscores her innovative use of data and
statistics to prove the effectiveness of her reforms.
Passage 2 — The Human Immune System: A Two-Layer Defense
The human immune system functions as a sophisticated defense network that protects the body
against pathogens, including bacteria, viruses, fungi, and parasites. This system is organized into two
primary components: the innate immune system and the adaptive immune system. The innate
immune system provides the body's first line of defense and responds rapidly to threats. It includes
physical barriers such as the skin and mucous membranes, as well as cellular defenders like
macrophages, neutrophils, and natural killer cells. These cells recognize general patterns associated
with pathogens rather than specific organisms.
When the innate immune system is insufficient to eliminate a threat, the adaptive immune system is
activated. This second layer of defense is slower to respond—typically requiring several days to reach
full effectiveness—but it is highly specific. B lymphocytes produce antibodies tailored to particular
antigens on the surface of invading pathogens, while T lymphocytes directly attack infected cells.
Crucially, the adaptive immune system retains immunological memory: after an initial exposure, it
can mount a faster and stronger response upon subsequent encounters with the same pathogen.
The interplay between these two systems is essential for effective immune function. For instance,
dendritic cells bridge the innate and adaptive responses by capturing pathogens and presenting their
antigens to T cells, thereby activating the adaptive system. Vaccines exploit this relationship by
introducing weakened or inactivated pathogens that stimulate adaptive immunity without causing
disease, creating memory cells that confer long-term protection.
4. Based on the passage, what is the key difference between the innate and adaptive
immune systems?
, A. The innate system is faster but less specific; the adaptive system is slower but
highly targeted.
B. The innate system produces antibodies while the adaptive system uses physical barriers.
C. The innate system is only found in the skin while the adaptive system operates throughout
the body.
D. The innate system works against viruses while the adaptive system only targets bacteria.
Rationale: The passage explicitly contrasts the two systems: the innate immune system
"responds rapidly" and recognizes "general patterns associated with pathogens rather than
specific organisms," while the adaptive system is "slower to respond" but "highly specific," with B
cells producing antibodies "tailored to particular antigens." This distinction between speed and
specificity is the fundamental difference highlighted throughout the passage.
5. According to the passage, how do vaccines leverage the immune system's natural
processes?
A. They strengthen physical barriers such as the skin and mucous membranes to prevent
pathogen entry.
B. They directly kill pathogens that have already entered the body using chemical agents.
C. They introduce harmless versions of pathogens to stimulate the adaptive
system's memory cells for long-term protection.
D. They replace the innate immune system with artificial defense mechanisms that never
degrade.
Rationale: The passage states that vaccines work by "introducing weakened or inactivated
pathogens that stimulate adaptive immunity without causing disease, creating memory cells that
confer long-term protection." This directly exploits the adaptive immune system's ability to retain
immunological memory, enabling faster and stronger responses to future exposures of the same
pathogen.
6. What role do dendritic cells play in the immune response as described in the
passage?
A. They produce antibodies that neutralize specific pathogens in the bloodstream.
B. They serve as a bridge between innate and adaptive immunity by presenting
antigens to T cells.
C. They form physical barriers that prevent pathogens from entering through the skin.
D. They destroy infected cells directly using toxic enzymes and signaling molecules.
Rationale: The passage specifically explains that dendritic cells "bridge the innate and adaptive
responses by capturing pathogens and presenting their antigens to T cells, thereby activating the
adaptive system." This function as a connector between the two immune subsystems is their
primary role as described, not producing antibodies, forming barriers, or directly destroying
infected cells.
Test of Essential Academic Skills Version 7 | 2026/2027 Practice — 45 Questions with Verified
Solutions
Domain 1: Key Ideas & Details (Questions 1–22)
Passage 1 — The Legacy of Florence Nightingale
Florence Nightingale is widely regarded as the founder of modern nursing. Born in 1820 into a
wealthy British family, she defied the social expectations placed upon women of her class by pursuing
a career in healthcare. During the Crimean War (1853–1856), Nightingale and a team of 38 nurses
traveled to Scutari, Turkey, where they found soldiers dying not primarily from combat injuries but
from infectious diseases exacerbated by overcrowded, unsanitary conditions.
Nightingale implemented rigorous hygiene protocols, including handwashing, clean linens, improved
ventilation, and proper waste disposal. She meticulously collected data on mortality rates, creating
pioneering statistical graphics—most notably her polar area diagram, often called a "coxcomb chart"—
to illustrate that most deaths were preventable. Within six months of her reforms, the mortality rate at
Scutari dropped from 42.7% to 2.2%, a transformation that stunned military authorities.
After returning to England, Nightingale established the Nightingale Training School for Nurses at St.
Thomas' Hospital in London in 1860. This institution formalized nursing education and set
professional standards that influenced healthcare systems worldwide. Her 1859 book, "Notes on
Nursing," became an essential text, emphasizing that nursing was both a science and an art requiring
observation, critical thinking, and compassion. Nightingale's emphasis on evidence-based practice
and environmental factors in patient recovery remains central to nursing philosophy today.
1. According to the passage, what was the primary cause of soldier deaths at Scutari
before Nightingale's reforms?
A. Combat injuries sustained during battle
B. Infectious diseases worsened by unsanitary living conditions
C. A shortage of trained medical personnel and surgical equipment
D. Malnutrition resulting from inadequate military supply chains
Rationale: The passage explicitly states that soldiers were dying "not primarily from combat
injuries but from infectious diseases exacerbated by overcrowded, unsanitary conditions."
Nightingale's data collection confirmed that environmental factors, not battle wounds, drove the
high mortality rate, which is why her sanitation reforms proved so effective.
2. Which of the following best summarizes the main idea of the passage?
A. Florence Nightingale was a wealthy woman who chose an unusual career for her social class.
B. Florence Nightingale's evidence-based reforms during the Crimean War
revolutionized nursing and established principles that persist in modern
healthcare.
C. The Crimean War created conditions that made it nearly impossible to provide adequate
medical care to soldiers.
, D. Statistical graphics and data collection were the most important contributions Florence
Nightingale made to the field of medicine.
Rationale: While the passage covers Nightingale's background, the war conditions, and her
statistical work, the overarching theme is how her evidence-based sanitation reforms during the
war and subsequent establishment of nursing education transformed healthcare. The passage
traces her impact from the Crimean War through the founding of her training school, showing
the lasting influence of her work on modern nursing practice.
3. The passage suggests that Nightingale's approach to healthcare was distinguished by
her reliance on which of the following?
A. Traditional medical treatments inherited from earlier generations of physicians
B. Data collection and statistical analysis to demonstrate the effectiveness of her
interventions
C. Political lobbying and advocacy for government healthcare funding
D. Religious and spiritual principles to guide patient care decisions
Rationale: The passage emphasizes that Nightingale "meticulously collected data on mortality
rates" and created statistical graphics to demonstrate her results. Her emphasis on "evidence-
based practice" is highlighted as a core component of her philosophy. While she may have drawn
on traditional knowledge, the passage specifically underscores her innovative use of data and
statistics to prove the effectiveness of her reforms.
Passage 2 — The Human Immune System: A Two-Layer Defense
The human immune system functions as a sophisticated defense network that protects the body
against pathogens, including bacteria, viruses, fungi, and parasites. This system is organized into two
primary components: the innate immune system and the adaptive immune system. The innate
immune system provides the body's first line of defense and responds rapidly to threats. It includes
physical barriers such as the skin and mucous membranes, as well as cellular defenders like
macrophages, neutrophils, and natural killer cells. These cells recognize general patterns associated
with pathogens rather than specific organisms.
When the innate immune system is insufficient to eliminate a threat, the adaptive immune system is
activated. This second layer of defense is slower to respond—typically requiring several days to reach
full effectiveness—but it is highly specific. B lymphocytes produce antibodies tailored to particular
antigens on the surface of invading pathogens, while T lymphocytes directly attack infected cells.
Crucially, the adaptive immune system retains immunological memory: after an initial exposure, it
can mount a faster and stronger response upon subsequent encounters with the same pathogen.
The interplay between these two systems is essential for effective immune function. For instance,
dendritic cells bridge the innate and adaptive responses by capturing pathogens and presenting their
antigens to T cells, thereby activating the adaptive system. Vaccines exploit this relationship by
introducing weakened or inactivated pathogens that stimulate adaptive immunity without causing
disease, creating memory cells that confer long-term protection.
4. Based on the passage, what is the key difference between the innate and adaptive
immune systems?
, A. The innate system is faster but less specific; the adaptive system is slower but
highly targeted.
B. The innate system produces antibodies while the adaptive system uses physical barriers.
C. The innate system is only found in the skin while the adaptive system operates throughout
the body.
D. The innate system works against viruses while the adaptive system only targets bacteria.
Rationale: The passage explicitly contrasts the two systems: the innate immune system
"responds rapidly" and recognizes "general patterns associated with pathogens rather than
specific organisms," while the adaptive system is "slower to respond" but "highly specific," with B
cells producing antibodies "tailored to particular antigens." This distinction between speed and
specificity is the fundamental difference highlighted throughout the passage.
5. According to the passage, how do vaccines leverage the immune system's natural
processes?
A. They strengthen physical barriers such as the skin and mucous membranes to prevent
pathogen entry.
B. They directly kill pathogens that have already entered the body using chemical agents.
C. They introduce harmless versions of pathogens to stimulate the adaptive
system's memory cells for long-term protection.
D. They replace the innate immune system with artificial defense mechanisms that never
degrade.
Rationale: The passage states that vaccines work by "introducing weakened or inactivated
pathogens that stimulate adaptive immunity without causing disease, creating memory cells that
confer long-term protection." This directly exploits the adaptive immune system's ability to retain
immunological memory, enabling faster and stronger responses to future exposures of the same
pathogen.
6. What role do dendritic cells play in the immune response as described in the
passage?
A. They produce antibodies that neutralize specific pathogens in the bloodstream.
B. They serve as a bridge between innate and adaptive immunity by presenting
antigens to T cells.
C. They form physical barriers that prevent pathogens from entering through the skin.
D. They destroy infected cells directly using toxic enzymes and signaling molecules.
Rationale: The passage specifically explains that dendritic cells "bridge the innate and adaptive
responses by capturing pathogens and presenting their antigens to T cells, thereby activating the
adaptive system." This function as a connector between the two immune subsystems is their
primary role as described, not producing antibodies, forming barriers, or directly destroying
infected cells.
