Page 1 of 68
ATI TEAS 6 EXAM STUDY GUIDE EXAM 2026 QUESTIONS LATEST
VERSION QUESTIONS AND ANSWERS
ATI TEAS 6 EXAM STUDY GUIDE – 250 QUESTIONS WITH RATIONALES
SECTION 1: READING COMPREHENSION (Questions 1-60)
Key Ideas & Details (Questions 1-25)
1. According to the passage, what is the primary role of the mitochondria in a
eukaryotic cell?
A) To synthesize proteins for cellular repair
B) To generate ATP through aerobic cellular respiration
C) To store genetic information for cell division
D) To regulate the passage of substances into the cell
Correct Answer: B
Rationale: The primary function of the mitochondria is to generate ATP through aerobic
cellular respiration . This question assesses the ability to identify the central idea from
scientific passages.
2. The author uses the term "homeostasis" throughout the passage. Based on the
context, homeostasis most nearly means:
A) A state of disease and cellular damage
B) The maintenance of a stable internal environment
C) The process of cell division and reproduction
D) The breakdown of complex molecules for energy
Correct Answer: B
Rationale: Homeostasis refers to the maintenance of a stable internal environment despite
changes in external conditions. The question tests vocabulary in context.
, Page 2 of 68
3. Which of the following best summarizes the main idea of the passage on patient-
centered care?
A) Healthcare providers should focus on clinical outcomes only
B) Patient satisfaction is unrelated to healthcare quality
C) Effective healthcare requires considering patient preferences and values
D) Hospital administrators should prioritize cost reduction
Correct Answer: C
Rationale: Patient-centered care requires considering patient preferences, values, and needs.
The correct answer reflects the central theme of the passage.
4. The author's description of the "fight or flight" response suggests the sympathetic
nervous system primarily serves to:
A) Conserve energy during periods of rest
B) Prepare the body for physical activity or stress
C) Regulate digestion and metabolism
D) Control voluntary muscle movements
Correct Answer: B
Rationale: The sympathetic nervous system prepares the body for physical activity or stress
by increasing heart rate, dilating bronchioles, and mobilizing energy stores.
5. The passage states that "the incidence of type 2 diabetes has increased significantly
over the past three decades." This statement is most likely supported by:
A) A single case study of a patient with diabetes
B) Epidemiological data from multiple population-based studies
C) A theoretical model of glucose metabolism
D) A personal opinion from a healthcare provider
Correct Answer: B
Rationale: Epidemiological data from multiple population-based studies provides the
strongest support for statements about disease incidence trends.
6. The passage implies that the primary advantage of the double-blind placebo-
controlled trial over other study designs is:
A) Lower cost and faster completion
B) Reduction of bias in evaluating treatment outcomes
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C) Guaranteed positive results for the treatment group
D) Simpler statistical analysis
Correct Answer: B
Rationale: Double-blind placebo-controlled trials reduce bias by preventing both participants
and researchers from knowing who receives treatment.
7. According to the text, the "five rights" of medication administration include:
A) Right time, right route, right dose, right patient, right drug
B) Right diagnosis, right treatment, right outcome, right setting, right provider
C) Right cost, right insurance, right pharmacy, right prescription, right refill
D) Right symptom, right test, right result, right intervention, right follow-up
Correct Answer: A
Rationale: The five rights of medication administration are right patient, right drug, right
dose, right route, and right time.
8. The author suggests that the Affordable Care Act expanded healthcare coverage
primarily through:
A) The elimination of all private insurance plans
B) The creation of Health Insurance Marketplaces and Medicaid expansion
C) The government takeover of all hospitals
D) The reduction of healthcare quality standards
Correct Answer: B
Rationale: The Affordable Care Act expanded coverage through Health Insurance
Marketplaces and Medicaid expansion.
9. The passage describes the function of the respiratory system as:
A) Transporting nutrients to cells
B) Facilitating gas exchange (oxygen and carbon dioxide)
C) Filtering waste products from blood
D) Regulating body temperature
Correct Answer: B
Rationale: The respiratory system facilitates gas exchange, bringing oxygen into the body
and removing carbon dioxide.
, Page 4 of 68
10. The author's use of the phrase "cascade of events" in describing the inflammatory
response suggests that:
A) The response is random and unpredictable
B) The response involves a sequence of coordinated steps
C) The response is always harmful
D) The response only occurs in chronic disease
Correct Answer: B
Rationale: "Cascade of events" suggests a sequence of coordinated steps in the inflammatory
response.
11. The passage on infection control recommends hand hygiene as the most effective
method for preventing healthcare-associated infections. The author's main argument is:
A) Hand hygiene is too time-consuming for healthcare workers
B) Hand hygiene should be performed only after patient contact
C) Hand hygiene is cost-effective and significantly reduces infection transmission
D) Hand hygiene has been proven ineffective
Correct Answer: C
Rationale: Hand hygiene is cost-effective and significantly reduces infection transmission in
healthcare settings.
12. The author describes the function of the cardiovascular system as transporting
which of the following?
A) Only oxygen and carbon dioxide
B) Oxygen, nutrients, hormones, and waste products
C) Only white blood cells
D) Only nutrients
Correct Answer: B
Rationale: The cardiovascular system transports oxygen, nutrients, hormones, and waste
products throughout the body.
13. According to the passage, what is the primary purpose of the "teach-back" method
in patient education?
A) To provide patients with written information only
B) To confirm the patient's understanding of health information
ATI TEAS 6 EXAM STUDY GUIDE EXAM 2026 QUESTIONS LATEST
VERSION QUESTIONS AND ANSWERS
ATI TEAS 6 EXAM STUDY GUIDE – 250 QUESTIONS WITH RATIONALES
SECTION 1: READING COMPREHENSION (Questions 1-60)
Key Ideas & Details (Questions 1-25)
1. According to the passage, what is the primary role of the mitochondria in a
eukaryotic cell?
A) To synthesize proteins for cellular repair
B) To generate ATP through aerobic cellular respiration
C) To store genetic information for cell division
D) To regulate the passage of substances into the cell
Correct Answer: B
Rationale: The primary function of the mitochondria is to generate ATP through aerobic
cellular respiration . This question assesses the ability to identify the central idea from
scientific passages.
2. The author uses the term "homeostasis" throughout the passage. Based on the
context, homeostasis most nearly means:
A) A state of disease and cellular damage
B) The maintenance of a stable internal environment
C) The process of cell division and reproduction
D) The breakdown of complex molecules for energy
Correct Answer: B
Rationale: Homeostasis refers to the maintenance of a stable internal environment despite
changes in external conditions. The question tests vocabulary in context.
, Page 2 of 68
3. Which of the following best summarizes the main idea of the passage on patient-
centered care?
A) Healthcare providers should focus on clinical outcomes only
B) Patient satisfaction is unrelated to healthcare quality
C) Effective healthcare requires considering patient preferences and values
D) Hospital administrators should prioritize cost reduction
Correct Answer: C
Rationale: Patient-centered care requires considering patient preferences, values, and needs.
The correct answer reflects the central theme of the passage.
4. The author's description of the "fight or flight" response suggests the sympathetic
nervous system primarily serves to:
A) Conserve energy during periods of rest
B) Prepare the body for physical activity or stress
C) Regulate digestion and metabolism
D) Control voluntary muscle movements
Correct Answer: B
Rationale: The sympathetic nervous system prepares the body for physical activity or stress
by increasing heart rate, dilating bronchioles, and mobilizing energy stores.
5. The passage states that "the incidence of type 2 diabetes has increased significantly
over the past three decades." This statement is most likely supported by:
A) A single case study of a patient with diabetes
B) Epidemiological data from multiple population-based studies
C) A theoretical model of glucose metabolism
D) A personal opinion from a healthcare provider
Correct Answer: B
Rationale: Epidemiological data from multiple population-based studies provides the
strongest support for statements about disease incidence trends.
6. The passage implies that the primary advantage of the double-blind placebo-
controlled trial over other study designs is:
A) Lower cost and faster completion
B) Reduction of bias in evaluating treatment outcomes
, Page 3 of 68
C) Guaranteed positive results for the treatment group
D) Simpler statistical analysis
Correct Answer: B
Rationale: Double-blind placebo-controlled trials reduce bias by preventing both participants
and researchers from knowing who receives treatment.
7. According to the text, the "five rights" of medication administration include:
A) Right time, right route, right dose, right patient, right drug
B) Right diagnosis, right treatment, right outcome, right setting, right provider
C) Right cost, right insurance, right pharmacy, right prescription, right refill
D) Right symptom, right test, right result, right intervention, right follow-up
Correct Answer: A
Rationale: The five rights of medication administration are right patient, right drug, right
dose, right route, and right time.
8. The author suggests that the Affordable Care Act expanded healthcare coverage
primarily through:
A) The elimination of all private insurance plans
B) The creation of Health Insurance Marketplaces and Medicaid expansion
C) The government takeover of all hospitals
D) The reduction of healthcare quality standards
Correct Answer: B
Rationale: The Affordable Care Act expanded coverage through Health Insurance
Marketplaces and Medicaid expansion.
9. The passage describes the function of the respiratory system as:
A) Transporting nutrients to cells
B) Facilitating gas exchange (oxygen and carbon dioxide)
C) Filtering waste products from blood
D) Regulating body temperature
Correct Answer: B
Rationale: The respiratory system facilitates gas exchange, bringing oxygen into the body
and removing carbon dioxide.
, Page 4 of 68
10. The author's use of the phrase "cascade of events" in describing the inflammatory
response suggests that:
A) The response is random and unpredictable
B) The response involves a sequence of coordinated steps
C) The response is always harmful
D) The response only occurs in chronic disease
Correct Answer: B
Rationale: "Cascade of events" suggests a sequence of coordinated steps in the inflammatory
response.
11. The passage on infection control recommends hand hygiene as the most effective
method for preventing healthcare-associated infections. The author's main argument is:
A) Hand hygiene is too time-consuming for healthcare workers
B) Hand hygiene should be performed only after patient contact
C) Hand hygiene is cost-effective and significantly reduces infection transmission
D) Hand hygiene has been proven ineffective
Correct Answer: C
Rationale: Hand hygiene is cost-effective and significantly reduces infection transmission in
healthcare settings.
12. The author describes the function of the cardiovascular system as transporting
which of the following?
A) Only oxygen and carbon dioxide
B) Oxygen, nutrients, hormones, and waste products
C) Only white blood cells
D) Only nutrients
Correct Answer: B
Rationale: The cardiovascular system transports oxygen, nutrients, hormones, and waste
products throughout the body.
13. According to the passage, what is the primary purpose of the "teach-back" method
in patient education?
A) To provide patients with written information only
B) To confirm the patient's understanding of health information
