Chest XR and CT Flashcards
1
Q
What shows up darkest on XR?
A
air (metal, bone, muscle, fat, then air)
2
Q
Images look larger if the X-ray beam is located further or closer away from the patient?
A
closer
why the heart is enlarged on AP
3
Q
Why and when are CTs done?
A
evaluate lung masses or nodules seen on CXR
checking for PE
defining unknown abnormalities on routine CXR
4
Q
Chest CTs are typically done with contrast unless what?
A
unless you’re checking for vascular abnormalities
and unless they have decreased renal function
5
Q
Why do we do a lateral view?
A
because you can’t see behind the heart in a PA
