HESI / TEAS Test Prep Mini Exam 2026 PDF for Nursing
and Allied Health Students | Practice Questions, Quick
Review, Critical Thinking, Test-Taking Strategies, Time
Management, and Knowledge Reinforcement |
Comprehensive Mini Exam Preparation to Strengthen
Exam Readiness, Confidence, and HESI / TEAS
Performance
,Question 1:
Which of the following is the primary function of the respiratory
system?
A) Regulation of blood temperature
B) Exchange of oxygen and carbon dioxide
C) Filtration of blood
D) Production of hormones
Correct Option: B) Exchange of oxygen and carbon dioxide
Rationale:
The primary function of the respiratory system is to facilitate the exchange
of gases, specifically oxygen and carbon dioxide, between the body and the
environment. Oxygen is inhaled into the lungs and transported to the
bloodstream, while carbon dioxide is expelled from the bloodstream and
exhaled. The other options related to temperature regulation, filtration, or
hormone production are functions associated with other systems
(circulatory, urinary, and endocrine systems, respectively).
Question 2:
What is the pH range of human blood?
A) 6.0 - 6.5
B) 7.0 - 7.5
C) 7.35 - 7.45
D) 8.0 - 8.5
Correct Option: C) 7.35 - 7.45
Rationale:
Human blood is typically maintained within a tightly regulated pH range of
7.35 to 7.45. This slightly alkaline range is critical for proper enzymatic
reactions and overall metabolic function. Deviations from this range can
lead to acidosis or alkalosis, which can have serious health consequences.
The other options fall outside this normal physiological range.
Question 3:
, Which of the following is an example of a macronutrient?
A) Vitamin C
B) Iron
C) Carbohydrate
D) Calcium
Correct Option: C) Carbohydrate
Rationale:
Macronutrients are nutrients that provide energy and are required in larger
amounts by the body. Carbohydrates, proteins, and fats are the three
primary macronutrients. In contrast, vitamin C is a micronutrient (vitamin),
iron is a mineral, and calcium, while important, is also considered a
micronutrient.
Question 4:
Which structure in the brain is responsible for regulating body
temperature?
A) Cerebrum
B) Cerebellum
C) Hypothalamus
D) Medulla oblongata
Correct Option: C) Hypothalamus
Rationale:
The hypothalamus plays a crucial role in regulating many autonomic
processes, including body temperature. It acts as the body's thermostat by
receiving input regarding temperature and initiating responses such as
sweating or shivering. The cerebrum is involved in higher brain functions,
the cerebellum coordinates movement, and the medulla oblongata
controls vital autonomic functions like heart rate and respiratory rhythm.
Question 5:
Which type of blood vessel carries blood away from the heart?
and Allied Health Students | Practice Questions, Quick
Review, Critical Thinking, Test-Taking Strategies, Time
Management, and Knowledge Reinforcement |
Comprehensive Mini Exam Preparation to Strengthen
Exam Readiness, Confidence, and HESI / TEAS
Performance
,Question 1:
Which of the following is the primary function of the respiratory
system?
A) Regulation of blood temperature
B) Exchange of oxygen and carbon dioxide
C) Filtration of blood
D) Production of hormones
Correct Option: B) Exchange of oxygen and carbon dioxide
Rationale:
The primary function of the respiratory system is to facilitate the exchange
of gases, specifically oxygen and carbon dioxide, between the body and the
environment. Oxygen is inhaled into the lungs and transported to the
bloodstream, while carbon dioxide is expelled from the bloodstream and
exhaled. The other options related to temperature regulation, filtration, or
hormone production are functions associated with other systems
(circulatory, urinary, and endocrine systems, respectively).
Question 2:
What is the pH range of human blood?
A) 6.0 - 6.5
B) 7.0 - 7.5
C) 7.35 - 7.45
D) 8.0 - 8.5
Correct Option: C) 7.35 - 7.45
Rationale:
Human blood is typically maintained within a tightly regulated pH range of
7.35 to 7.45. This slightly alkaline range is critical for proper enzymatic
reactions and overall metabolic function. Deviations from this range can
lead to acidosis or alkalosis, which can have serious health consequences.
The other options fall outside this normal physiological range.
Question 3:
, Which of the following is an example of a macronutrient?
A) Vitamin C
B) Iron
C) Carbohydrate
D) Calcium
Correct Option: C) Carbohydrate
Rationale:
Macronutrients are nutrients that provide energy and are required in larger
amounts by the body. Carbohydrates, proteins, and fats are the three
primary macronutrients. In contrast, vitamin C is a micronutrient (vitamin),
iron is a mineral, and calcium, while important, is also considered a
micronutrient.
Question 4:
Which structure in the brain is responsible for regulating body
temperature?
A) Cerebrum
B) Cerebellum
C) Hypothalamus
D) Medulla oblongata
Correct Option: C) Hypothalamus
Rationale:
The hypothalamus plays a crucial role in regulating many autonomic
processes, including body temperature. It acts as the body's thermostat by
receiving input regarding temperature and initiating responses such as
sweating or shivering. The cerebrum is involved in higher brain functions,
the cerebellum coordinates movement, and the medulla oblongata
controls vital autonomic functions like heart rate and respiratory rhythm.
Question 5:
Which type of blood vessel carries blood away from the heart?
