Contrast Media, Cardiovascular System, & Venipuncture
Name 2 characteristics of negative contrast media
easily penetrable, composed of low-atomic number elements, appears radiolucent on x-ray
What will the stomach be filled with during a contrast UGI exam in the supine position?
contrast/barium
The gallbladder sits the highest in what body habitus?
Hypersthenic
The liver is found primarily in what abdominal quadrant?
RUQ
Name the 5 principles of contrast administration
right drug, right amount, right patient, right time, right route
What is the degree of patient obliquity used for an RAO esophagus?
35-40 degrees
When imaging the small bowel, where will the CR be centered during the first 30 minutes?
2” above crest/ L2
The large intestine lies most inferior in what body habitus?
Asthenic
What is the ideal vein to use during IV placement?
median cubital vein
List the layers of the esophagus from most internal to external
mucosal, submucosal, muscular, fibrous
How do you know when a patient is ready for fluoro during a small bowel procedure?
Contrast has reached the ileocecal valve
During a large bowel contrast exam, in the supine position, the transverse colon will be filled with ___; In the prone position, the transverse colon will be filled with ___.
air; contrast
Give an example of the enteral route of drug administration
Oral, sublingual, rectal
What degree of patient obliquity is used for an LPO stomach?
30-60 degrees
Briefly describe an enteroclysis procedure
Catheter insertion through the nasal or oral cavity into the duodenal-jejunal junction to examine the small bowel
Name both patient positions that allow visualization of the hepatic flexure.
RAO & LPO
Describe the path of deoxygenated blood circulation starting at the right atria
right atria → right ventricle → pulmonary arteries → lungs
What patient positioning best places the pyloric portion of the stomach and duodenal bulb in profile?
RAO
What is the name of the fluoroscopy procedure done to visualize the gallbladder?
Cholecystography
A right lateral decubitus position of the large bowel best shows the bowel lining on which sides of the colon?
demonstrates the medial side of the ascending colon & lateral side of the descending colon