quiz Flashcards
Which aspect of the stomach is most posterior
fundus
Which style of body habitus had a high and transverse stomach
hypersthenic
Where is the duodenal bulb located on a sthenic pt
L1-L2
What is the recommended kV range for single contrast upper GI
100-125
what is typical recipe for thick barium mixture
3 or 4 parts barium to 1 part water
which modality best demonstrates barretts esophagus
nuclear medicine
characteristics of barium sulfate
Its a positive agent, never dissolves in water, produces a colloidal suspension when mixed with water.
how long should a 6 mth infant be NPO for upper GI?
4 hrs
materials used to detect radiolucent eaophageal foreign bodies
barium covered marshmallows and cottonballs and barium pills
protective device best reduces exposure to gonadal region of fluoroscopist
bucky slot cover
most common type of gastric obstruction in infants
HPS - hypertrophic pyloric stenosis
types of digestive movement characteristic of large intestines
peristalsis, haustral, churning
vessel NOT part of arterial circle (circle of willis)
middle cerebral artery
which branches of abdominal aorta considered most superior
celiac artery
most common clinical indication for post operative cholangiogram
residual calculi (stones)
Vessel NOT typical puncture site for catheterization during angiography
external iliac artery
exposure angle that will produce the thinnest sectional thickness
the largest angle - 40 degrees
what category of reaction does extravasation fall into?
local reaction
symptom considered severe reaction to contrast media requiring life saving measures
arrhythmia/cardiac arrest
tourniquet should be applied how many inches above injection site
3-4 inches
where is the CR centered for nephrotogram of kidneys
halfway between iliac crest and xiphoid process
barium enema or IVU first if ordered on same day
IVU due to water soluble contrast is eliminated by the body first
A radiograph of LPO during IVU shows right kidney is foreshortened and superimposed over spine. What correction should be done?
decrease rotation until kidneys are parallel to IR
(30 degree rotation)
which abdominal quadrant is the duodenum located
right upper
prior to having a small bowel series pt should be npo how long?
8 hrs
recommended water temp for barium mixture used for barium enema
85-90 degrees F
kV range for iodinated water soluble barium enema
80-90 kV
following ingestion of barium for small bowel series, first radiograph taken at
30 minutes
normally positioned kidney is rotated
posteriorly 30 degrees
the exaggerated drop in the location of the kidneys when a pt stands
nephroptosis
veins commonly used for venipuncture
median cubital, cephalic, basilic
for insertion into a vein, the bevel of the needle must be facing
upward at an angle of 20-45 degrees
the retrogastric space is best demonstrated by the
right lateral position
a properly positioned radiograph of the stomach in RAO position will demonstrate
air in fundus, duodenal loop
for a PA projection of large intestine:
direct CR to level of iliac crest, use a 40 inch sid
a properly positioned LAO of large intestine will demonstrate
left colic flexure and descending colon
symptoms of moderate contrast reaction include
hypotension and tachycardia
following a iodinated contrast study, glucophage should be withheld for
48 hrs
non-ionic contrast agents
contain three iodine atoms & do not contain cations
