Which of the following structures in the chest is typically ...

[armygirl]

Which of the following structures in the chest is typically examined using MRI? 1. Lung parenchyma 2. Hilar structures 3. Large vessels in the lung 4. Structures in the mediastinum
 
  a. 2, 3, and 4 only
  b. 2 and 3 only
  c. 4 only
  d. 1, 2, 3, and 4

Question 2

Which of the following is a major limitation of magnetic resonance imaging (MRI) of the chest?
 
  a. Cannot visualize large vessels.
  b. Cannot be used in patients with pacemak-ers.
  c. Cannot be used to examine hilar struc-tures.
  d. Interpretation is difficult.

[sarah_brady415]

Answer to Question 1

ANS: A
The most common uses for MRI in the chest are for imaging the mediastinum, large vessels in the lung, and hilar regions of the lungs.

Answer to Question 2

ANS: B
It is critically important to avoid taking conventional metal objects near the MRI machine, be-cause the powerful magnet will pull the metallic object into the magnet with great force, exposing patients and health care providers in its path to life-threatening risk.