Inherent filtration is recommended to be: 2.5 mm aluminum ...

[karlynnae]

Inherent filtration is recommended to be:
 
 2.5 mm aluminum equivalent
  0.5 tungsten equivalent
  0.5 mm aluminum equivalent
  2.0 mm aluminum equivalent

Question 2

Which control serves to protect a patient from overexposure and protect the tube from damage?
 
 mAs timer
  electronic timer
  backup timer
  AEC

[janieazgirl]

Answer to Question 1

0.5 mm aluminum equivalent

Rationale: Inherent filtration is usually about 0.5 mm aluminum equivalent. Inherent filtration is built into the tube; glass tube and insulating oil.

Answer to Question 2

backup timer

Rationale: The backup timer is crucial to ensure that the patient is protected from overexposure and to protect the x-ray tube in result of AEC failure.