Question 1

Which biological theory of aging suggests that cells accumulate errors in DNA and RNA synthesis over time, eventually leading to cellular dysfunction?

Accepted Answer

Stochastic (Error) Theory

Question 2

An older adult presents with purple spots on their forearm, as shown in the third image. What is the most likely cause of this skin change?

Accepted Answer

Senile purpura due to fragile blood vessels

Question 3

Which age-related musculoskeletal change is illustrated by the posture and height differences in the eighth and ninth images?

Accepted Answer

Kyphosis due to intervertebral disk shrinkage

Question 4

What is the primary reason older adults are at increased risk for osteoporosis, as shown in the tenth image?

Accepted Answer

Decreased bone mass and mineral density

Question 5

A patient complains of dry, itchy skin. Which age-related integumentary change is most likely responsible for this symptom?

Accepted Answer

Atrophy of oil, moisture, and sweat glands

Question 6

Which cardiovascular change is most significant in contributing to increased systolic blood pressure in older adults, as shown in the eleventh image?

Accepted Answer

Decreased elasticity and recoil of blood vessels

Question 7

An older adult is prescribed a topical medication. Which age-related skin change may affect the absorption of this medication?

Accepted Answer

Thinner skin and atrophy of subcutaneous tissue

Question 8

Which formula best represents the calculation of blood pressure, considering age-related changes in vessel elasticity?

Accepted Answer

$BP = CO 	imes PR$

Question 9

A 70-year-old woman is at increased risk for fractures after menopause. Which intervention is most effective for promoting bone health?

Accepted Answer

Regular intake of calcium and vitamin D

Question 10

Which age-related change in the respiratory system increases the risk for pneumonia in older adults?

Accepted Answer

Decrease in cilia and reduced immune function

Question 11

An older adult reports frequent urination and nocturia. Which age-related change in the renal system is most likely responsible?

Accepted Answer

Decreased bladder capacity and muscle tone

Question 12

Which endocrine change increases the risk for type 2 diabetes in older adults?

Accepted Answer

Decreased sensitivity of body tissues to insulin

Question 13

A patient presents with dry mouth and loss of taste. Which age-related gastrointestinal change is most likely responsible?

Accepted Answer

Decreased saliva production and taste sensation

Question 14

Which age-related change in the esophagus increases the risk for gastroesophageal reflux disease (GERD)?

Accepted Answer

Diminished muscle strength and slow emptying

Question 15

Constipation in older adults is most commonly due to which factor?

Accepted Answer

Diet and inactivity

Question 16

Which neurological change increases the risk for falls in older adults?

Accepted Answer

Altered proprioception and decreased tactile awareness

Question 17

An older adult is confused but not febrile. Which age-related immune change explains this presentation during infection?

Accepted Answer

Altered signs and symptoms of infection, including confusion

Question 18

Which intervention is most effective for promoting healthy skin in older adults?

Accepted Answer

Apply moisturizer to damp skin after bathing

Question 19

Which formula best represents the calculation of cardiac output, a key concept in cardiovascular aging?

Accepted Answer

$CO = HR 	imes SV$

Question 20

Which lifestyle change is most effective in reducing the risk of coronary artery disease in older adults?

Accepted Answer

Engaging in regular exercise and eating a low-fat, low-cholesterol diet

N1016 Physical Changes of Aging - Class 4

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