Which nursing intervention reduces myocardial oxygen demand? ...

[Jipu 123]

Which nursing intervention reduces myocardial oxygen demand?
 
  a. Supplying a portable oxygen unit during activity
  b. Encouraging participation in cardiac rehabilitation program
  c. Elevating the head of the bed 30 to 45 degrees
  d. Positioning patient in supine position

Question 2

The elderly population has a high incidence of hyperglycemia. Compared with younger adults, what makes the elderly more vulnerable to this disorder?
 
  A) Glucose intolerance
  B) Improved diagnostic tests
  C) Diabetes prevalence
  D) Obesity prevalence

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Answer to Question 1

C
Bed rest and semi-Fowler's position reduce myocardial oxygen demands.

Answer to Question 2

A
Feedback:
The physiologic deterioration of glucose tolerance with age increases the risk of hyperglycemia for the elderly. The other choices increase the risk for the population as a whole, including young people.