The theory of aging that suggests the body becomes less able to ...

[AEWBW]

The theory of aging that suggests the body becomes less able to recognize or tolerate the self is the:
 
  a. free radical theory.
  b. autoimmunity theory.
  c. wear-and-tear theory.
  d. biologic programming theory.

Question 2

When reading the lab report of a patient with excessive diarrhea, the nurse notes that the pH is 7.10, and the PaCO2 and the PaO2 are normal. From this information alone, the nurse assesses the patient to be in:
 
  a. respiratory acidosis.
  b. metabolic acidosis.
  c. respiratory alkalosis.
  d. metabolic alkalosis.

[mochi09]

Answer to Question 1

B
The autoimmunity theory holds that with aging the body becomes less able to recognize or tolerate the self. As a result the immune system produces antibodies that act against the self.

Answer to Question 2

B
The profile of a patient in metabolic acidosis is that the blood pH will be below 7.35 and the oxygen readings are within normal limits.