Trans - Plain and Contrast X Ray Studies Flashcards
gas appears as what color in xrays
black
fat appears as what color in xrays
dark gray
soft tissue/fluid appears as what color in xrays
light grey
bone/calcifications appear as what color in xrays
white
metal appears as what color in xrays
intense white
nothing per orem is required how many hours before examination
4-6 hours
why is NPO required
for better absorption of contrast media
what to examine in radiology of the abdomen
- gas pattern
- extraluminal air
- soft tissue masses
- calcifications
- foreign bodies
gas present in GIT is from:
swallowed air and bacterial production
T/F: there is always gas in the stomach
T, it forms the gastric bubble
T/F: gas is often absent in the rectum and sigmoid due to the presence of feces
F
the primary structures in the abdomen that are outlined in radiology are the:
- solid organs - liver, kidneys, spleen
2. hollow organs - GI tract
the contrast material used for abdominal studies is
barium sulfate
what volume of barium sulfate is ingested to image the GIT
1L of barium, plus 250cc midway
in a normal esophagogram, what is the texture of the visible wall
smooth