Older adults in good physical condition have cardiac function ...

[crazycityslicker]

Older adults in good physical condition have cardiac function comparable to younger persons in poor condition. What is the most likely cause of a rise in systolic blood pressure in the elderly?
 
  A) Postural and postprandial hypotension
  B) Atherosclerosis in the innermost layer of the blood vessels
  C) Impaired baroreceptor function and increased peripheral resistance
  D) Cellular proliferation in the tunica intima

Question 2

Which of the following individuals is at greatest risk for bladder cancer?
 
  A) Male aged 70 years who retired as a manager for a dye factory
  B) Female aged 70 years who retired as a manager for a dye factory
  C) Male aged 70 years with a history of hypertension and diuretics treatment
  D) Female aged 70 years with a history of hypertension and diuretics treatment

[katkat_flores]

Answer to Question 1

C
Feedback:
In the middle layer of blood vessels, impaired baroreceptor function and increased peripheral resistance lead to a rise in systolic blood pressure. Reduced sensitivity of the blood pressure regulation with baroreceptors increases problems with postural hypotension and postprandial hypotension; thus, they are an effect, not a cause. Cells proliferate in the innermost layer of vessels and atherosclerosis develops, but these are not the direct causes of increased systolic pressure.

Answer to Question 2

A
Feedback:
Chronic irritation of the bladder, exposure to dyes, and cigarette smoking all contribute to the risk of bladder cancer, with older men at three times higher risk than women.

[crazycityslicker]

Correct answers!

[katkat_flores]

Great! Please up vote