RNA 805 QUIZ 4 EXAM 2025/2026
QUESTIONS AND ANSWERS 100% PASS
Many changes in organ function and composition occur by the eighth decade of life. Match the
appropriate change with the organ system change or diagnostic characteristic with which it is
associated. - ANS Serum creatinine concentration - stays the same
Brain mass - decreases
Plasma catecholamine levels - increases
Which of the following does not decrease significantly with age? - ANS Baseline hepatic
function
The increase in peripheral vascular resistance seen in elderly patients typically results in -
ANS Concentric left ventricular hypertrophy
Which of the following respiratory parameters is decreased in elderly patients? -
ANS Alveolar surface area
Which of the following statements describes the age-related changes in glomerular function
accurately? - ANS The glomerular filtration rate decreases by 1 mL/min each year after age 40
Minimum alveolar concentration (MAC) decreases by ____ percent per decade. - ANS 6
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Why are geriatric patients more susceptible to hypothermia? - ANS They are more prone to
hypothyroidism
Which of the following changes would you expect to occur normally in elderly patients? -
ANS Decreased serum albumin
Match the respiratory parameter and the change you would expect to occur as a result of
increased age. - ANS FEV1 - decreases
Closing volume - increases
Total lung capacity - no change
Which change is principally responsible for the reduction in alveolar surface volume in the
elderly? - ANS Decreased pulmonary elastic tissue
Select the two most dramatic changes in lung volumes seen with increased age. -
ANS Increase in closing volume
Increase in closing capacity
Which of the following is not decreased in elderly patients? - ANS Circulatory time
Match the physiologic characteristic with the manner in which it changes with age. -
ANS Insulin resistance - increases
CNS activity - decreases
Alpha-1 acid glycoprotein levels - stays the same
With aging, the ventilatory response to hypercapnia can decrease by as much as _____ percent.
- ANS 50
Select the two most prominent effects of aging on the pulmonary system. - ANS Increased
stiffness of the chest wall
Decreased stiffness of the parenchyma
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
QUESTIONS AND ANSWERS 100% PASS
Many changes in organ function and composition occur by the eighth decade of life. Match the
appropriate change with the organ system change or diagnostic characteristic with which it is
associated. - ANS Serum creatinine concentration - stays the same
Brain mass - decreases
Plasma catecholamine levels - increases
Which of the following does not decrease significantly with age? - ANS Baseline hepatic
function
The increase in peripheral vascular resistance seen in elderly patients typically results in -
ANS Concentric left ventricular hypertrophy
Which of the following respiratory parameters is decreased in elderly patients? -
ANS Alveolar surface area
Which of the following statements describes the age-related changes in glomerular function
accurately? - ANS The glomerular filtration rate decreases by 1 mL/min each year after age 40
Minimum alveolar concentration (MAC) decreases by ____ percent per decade. - ANS 6
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Why are geriatric patients more susceptible to hypothermia? - ANS They are more prone to
hypothyroidism
Which of the following changes would you expect to occur normally in elderly patients? -
ANS Decreased serum albumin
Match the respiratory parameter and the change you would expect to occur as a result of
increased age. - ANS FEV1 - decreases
Closing volume - increases
Total lung capacity - no change
Which change is principally responsible for the reduction in alveolar surface volume in the
elderly? - ANS Decreased pulmonary elastic tissue
Select the two most dramatic changes in lung volumes seen with increased age. -
ANS Increase in closing volume
Increase in closing capacity
Which of the following is not decreased in elderly patients? - ANS Circulatory time
Match the physiologic characteristic with the manner in which it changes with age. -
ANS Insulin resistance - increases
CNS activity - decreases
Alpha-1 acid glycoprotein levels - stays the same
With aging, the ventilatory response to hypercapnia can decrease by as much as _____ percent.
- ANS 50
Select the two most prominent effects of aging on the pulmonary system. - ANS Increased
stiffness of the chest wall
Decreased stiffness of the parenchyma
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
