Rasmussen University NUR 2214 Module 2 (pdf) | 2026/2027 | Older
Adult Q&A | Geriatric Nursing
**1. A nurse is caring for an older adult patient. Which theory of aging states
that unstable molecules produced by metabolism cause cellular damage
over time?**
A) Wear-and-Tear Theory
B) Cross-Linkage Theory
C) Free Radical Theory
D) Biological Clock Theory
Correct Answer: C) Free Radical Theory
Rationale: The Free Radical Theory proposes that aging results from the
accumulation of damage caused by free radicals—unstable molecules
produced during normal metabolism or from exposure to environmental
toxins. These free radicals attack healthy cells and DNA, leading to cellular
dysfunction and disease. Antioxidants can help neutralize free radicals.
**2. The Cross-Linkage Theory of aging is also referred to as which of the
following?**
A) The Glycosylation Theory
B) The Immunological Theory
C) The Neuroendocrine Theory
D) The Telomere Theory
Correct Answer: A) The Glycosylation Theory
Rationale: The Cross-Linkage Theory, also known as the Glycosylation
Theory, proposes that aging results from the accumulation of cross-linked
proteins, which damages cells and tissues and slows down bodily processes.
,This cross-linking affects proteins like collagen, contributing to the stiffening
of tissues.
**3. A nurse is teaching a community group about healthy aging. Which of
the following is an example of an antioxidant that can help neutralize free
radicals?**
A) Saturated fat
B) Vitamin C
C) Trans fat
D) Simple carbohydrates
Correct Answer: B) Vitamin C
Rationale: Antioxidants are substances that neutralize free radicals and can
be found in foods rich in vitamins and various fruits and vegetables. Vitamin
C is a well-known antioxidant that helps protect cells from oxidative stress.
Saturated fats, trans fats, and simple carbohydrates are not antioxidants.
**4. A nurse is discussing aging theories with a colleague. Which theory
suggests that aging is caused by the accumulation of waste products and
environmental damage over time?**
A) Free Radical Theory
B) Cross-Linkage Theory
C) Wear-and-Tear Theory
D) Biological Clock Theory
Correct Answer: C) Wear-and-Tear Theory
Rationale: The Wear-and-Tear Theory proposes that the body, like any
machine, simply wears out over time due to use and exposure to
,environmental factors. This theory suggests that accumulated damage from
daily living and environmental stressors leads to the physical decline
associated with aging.
**5. The Biological Clock Theory of aging is based on the premise that:**
A) Aging is caused by the accumulation of free radicals
B) The body has a pre-programmed limit to the number of times cells can
divide
C) Aging results from the cross-linking of proteins
D) Aging is a result of the immune system's decline
Correct Answer: B) The body has a pre-programmed limit to the number of
times cells can divide
Rationale: The Biological Clock Theory (also known as the Programmed
Theory) suggests that aging is genetically determined and that the body has
an internal biological clock that dictates the lifespan. This is often associated
with the Hayflick limit, which is the number of times a cell can divide before
it stops.
**6. A nurse is caring for an older adult who is experiencing a decline in
physical function. Which theory of aging would best explain this decline as a
result of the body's inability to repair itself?**
A) Free Radical Theory
B) Cross-Linkage Theory
C) Wear-and-Tear Theory
D) Biological Clock Theory
Correct Answer: C) Wear-and-Tear Theory
, Rationale: The Wear-and-Tear Theory aligns with the concept that the body's
natural repair mechanisms become less efficient over time, leading to
accumulated damage and functional decline. This perspective views aging as
a consequence of the body's inability to keep up with the wear and tear of
daily life.
**7. An older adult patient asks the nurse what causes aging. The nurse's
response includes the statement that "free radicals can be limited by which
of the following?"**
A) Smoking cessation and limiting sun exposure
B) Increasing consumption of processed foods
C) Decreasing physical activity
D) Increasing stress levels
Correct Answer: A) Smoking cessation and limiting sun exposure
Rationale: Exposure to harmful substances like tobacco smoke and ultraviolet
(UV) light from the sun increases the production of free radicals. Therefore,
smoking cessation and limiting sun and UV light exposure are effective
strategies to reduce free radical damage and promote healthier aging.
**8. The nurse is planning a presentation on the biological theories of aging.
Which statement accurately describes the Free Radical Theory?**
A) Aging is caused by a decline in the immune system's function
B) Aging results from the cross-linking of proteins in the body
C) Aging is caused by the accumulation of damage from unstable molecules
D) Aging is due to the body's pre-programmed genetic clock
Correct Answer: C) Aging is caused by the accumulation of damage from
unstable molecules
Adult Q&A | Geriatric Nursing
**1. A nurse is caring for an older adult patient. Which theory of aging states
that unstable molecules produced by metabolism cause cellular damage
over time?**
A) Wear-and-Tear Theory
B) Cross-Linkage Theory
C) Free Radical Theory
D) Biological Clock Theory
Correct Answer: C) Free Radical Theory
Rationale: The Free Radical Theory proposes that aging results from the
accumulation of damage caused by free radicals—unstable molecules
produced during normal metabolism or from exposure to environmental
toxins. These free radicals attack healthy cells and DNA, leading to cellular
dysfunction and disease. Antioxidants can help neutralize free radicals.
**2. The Cross-Linkage Theory of aging is also referred to as which of the
following?**
A) The Glycosylation Theory
B) The Immunological Theory
C) The Neuroendocrine Theory
D) The Telomere Theory
Correct Answer: A) The Glycosylation Theory
Rationale: The Cross-Linkage Theory, also known as the Glycosylation
Theory, proposes that aging results from the accumulation of cross-linked
proteins, which damages cells and tissues and slows down bodily processes.
,This cross-linking affects proteins like collagen, contributing to the stiffening
of tissues.
**3. A nurse is teaching a community group about healthy aging. Which of
the following is an example of an antioxidant that can help neutralize free
radicals?**
A) Saturated fat
B) Vitamin C
C) Trans fat
D) Simple carbohydrates
Correct Answer: B) Vitamin C
Rationale: Antioxidants are substances that neutralize free radicals and can
be found in foods rich in vitamins and various fruits and vegetables. Vitamin
C is a well-known antioxidant that helps protect cells from oxidative stress.
Saturated fats, trans fats, and simple carbohydrates are not antioxidants.
**4. A nurse is discussing aging theories with a colleague. Which theory
suggests that aging is caused by the accumulation of waste products and
environmental damage over time?**
A) Free Radical Theory
B) Cross-Linkage Theory
C) Wear-and-Tear Theory
D) Biological Clock Theory
Correct Answer: C) Wear-and-Tear Theory
Rationale: The Wear-and-Tear Theory proposes that the body, like any
machine, simply wears out over time due to use and exposure to
,environmental factors. This theory suggests that accumulated damage from
daily living and environmental stressors leads to the physical decline
associated with aging.
**5. The Biological Clock Theory of aging is based on the premise that:**
A) Aging is caused by the accumulation of free radicals
B) The body has a pre-programmed limit to the number of times cells can
divide
C) Aging results from the cross-linking of proteins
D) Aging is a result of the immune system's decline
Correct Answer: B) The body has a pre-programmed limit to the number of
times cells can divide
Rationale: The Biological Clock Theory (also known as the Programmed
Theory) suggests that aging is genetically determined and that the body has
an internal biological clock that dictates the lifespan. This is often associated
with the Hayflick limit, which is the number of times a cell can divide before
it stops.
**6. A nurse is caring for an older adult who is experiencing a decline in
physical function. Which theory of aging would best explain this decline as a
result of the body's inability to repair itself?**
A) Free Radical Theory
B) Cross-Linkage Theory
C) Wear-and-Tear Theory
D) Biological Clock Theory
Correct Answer: C) Wear-and-Tear Theory
, Rationale: The Wear-and-Tear Theory aligns with the concept that the body's
natural repair mechanisms become less efficient over time, leading to
accumulated damage and functional decline. This perspective views aging as
a consequence of the body's inability to keep up with the wear and tear of
daily life.
**7. An older adult patient asks the nurse what causes aging. The nurse's
response includes the statement that "free radicals can be limited by which
of the following?"**
A) Smoking cessation and limiting sun exposure
B) Increasing consumption of processed foods
C) Decreasing physical activity
D) Increasing stress levels
Correct Answer: A) Smoking cessation and limiting sun exposure
Rationale: Exposure to harmful substances like tobacco smoke and ultraviolet
(UV) light from the sun increases the production of free radicals. Therefore,
smoking cessation and limiting sun and UV light exposure are effective
strategies to reduce free radical damage and promote healthier aging.
**8. The nurse is planning a presentation on the biological theories of aging.
Which statement accurately describes the Free Radical Theory?**
A) Aging is caused by a decline in the immune system's function
B) Aging results from the cross-linking of proteins in the body
C) Aging is caused by the accumulation of damage from unstable molecules
D) Aging is due to the body's pre-programmed genetic clock
Correct Answer: C) Aging is caused by the accumulation of damage from
unstable molecules
