The Finding of an Air-Fluid Level on a Radiologic Image

Multiple Choice

The finding of an air-fluid level on a radiologic image may reveal all of the following except:

A) the presence of fluid in an air cavity such as a paranasal sinus.
B) the presence of gas and purulent fluid in an abscess.
C) the orientation of the patient when the radiograph was done.
D) the normal presence of fluid and air in the stomach.
E) the radiographic density of pathologic fluid.