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Author Question: Which of the following statements form components of both the error theory of aging and the ... (Read 52 times)

CQXA

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on: Jul 11, 2018
Which of the following statements form components of both the error theory of aging and the cross-linking theory of aging?
 
  A) Free radicals cause mutations in cells.
  B) Senescence is environmentally controlled at the cellular level.
  C) Changes in DNA lead to organ malfunctions.
  D) Genetic programming determines life expectancy.

Question 2

When reviewing the medical record the nurse notes that a newly admitted older patient has a history of angina. Which assumption can the nurse make about this patient?
 
  A) The patient will take anticoagulants and have calf and foot edema
  B) The patient will be obese and have a history of venous insufficiency
  C) The patient will have an order for nitroglycerine as needed and will be intolerant of vigorous activity
  D) The patient will be prone to dizziness when changing positions quickly and will be prescribed ACE inhibitors


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scottmt

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Reply #1 on: Jul 11, 2018
Answer to Question 1

C
Feedback:
Both the error theory and the cross-linking theory assert some change in DNA that interferes with normal cell functioning. Such changes may be caused by free radicals or any of many other mutagens. Although the aging of cells may be environmentally influenced, it is not thought to be externally controlled. That genetic programming determines life expectancy is a basic tenet of the programmed theory of aging.

Answer to Question 2

C
Feedback:
Nitroglycerine has been effective in treating and preventing angina attacks. Strenuous activity can precipitate an angina attack. Anticoagulation is not a treatment for angina. Patients with angina do not have foot and calf edema. Angina is not associated with obesity. ACE inhibitors are not used to treat orthostatic changes and dizziness.


CQXA

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Reply 2 on: Jul 11, 2018
YES! Correct, THANKS for helping me on my review

chjcharjto14

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Reply 3 on: Yesterday
:D TYSM

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