DX PROCEDURES: IMAGING TESTS HUHU Flashcards
Examines upper part of the digestive system
o Esophagus
o Stomach
o Duodenum
Barium Swallow - Upper GI Series
barium swallow upper GI series
NPO for how many hrs?
6hrs prior to procedure
Following the test, the pt is given a laxative to quicken the elimination of the barium
Examines structures, position, peristaltic activity, and motility of the organs
Helps detect
o Ulcers
o Hiatal hernias
o Tumors
o Abnormal anatomy
o Malposition
o Inflammation
Barium Swallow - Upper GI Series
Examines
o Rectum
o Large intestine
o Lower part of the small intestine
Used to detect
o Colon polyps
o Tumors
o Chronic inflammatory bowel disease
Barium Enema - Lower GI Series
Barium Enema - Lower GI Series
Prior to procedure
Bowel cleansing with laxatives and/or enema
Barium Enema - Lower GI Series
Diet
Liquid diet for 24hrs prior to procedure then remain NPO for 8hrs
Another diagnostic imaging technique that uses high-frequency sound waves that bounce off organs and are electronically converted to computer images
Reveals organ size, shape, and position
Assists in diagnosing
o Cysts
o Tumors
o Stones
Ultrasonography
Ultrasonography
NPO for how many hrs?
8-12hrs
Preferred procedure especially for diagnosing gallbladder disease since it does not expose the pt to radiation and it is painless and safe
Ultrasonography
An imaging test that uses multiple x-rays to make detailed images of the body
Computed Tomography (CT) Scan
Computer reconstructs data into two-dimensional images to show details of bones, muscles, fat, and organs
Uses to assess problems of
o Gallbladder
o Biliary ductal system
o Pancreas
Computed Tomography (CT) Scan
Combines CT scan with the injection of contrast media to emphasize differences in tissue density in the pancreas and better visualize the biliary tract
The pt should be assessed for allergies to
o Iodine
o Seafood
o Contrast medium
Remain NPO for 8-12hrs before the test
CT Angiography
Uses strong magnetic fields, radiofrequencies, and a computer
Detailed images of
o Organs
o Soft tissues
o Bone
o All other structure within the body
Painless and it does not involve x-ray
Magnetic Resonance Imaging (MRI)
Claustrophobic patients may need a sedative to help them relax
All metal objects must be removed from the MRI room
Patients with pacemakers, metal clips, or rods in the body cannot have an MRI done
Magnetic Resonance Imaging (MRI)
Radioactive material introduced into the body
Special camera used to detect radioactivity
Produces images of the GI tract
GI Nuclear Scan
5 Types of GI Nuclear Scans
A. Radioactive material injected into a vein for:
- GI Bleeding Scan
- Liver-Spleen Scan
- Gallbladder Nuclear Scan
B. Radioactive material is ingested orally for:
- Gastroesophageal reflux scan
- Gastric emptying scan
Tests valuable for detecting:
o Gallbladder disease
o Tumors
o GI bleeding
o Liver function and abnormalities
o Other digestive disorders
GI Nuclear Scan
X-ray examination of the bile ducts
Uses contrast medium to locate and identify:
o Stones
o Strictures
o Tumors
Cholangiography
Radiopaque dye may be administered by IV or injected directly into the common bile duct
Patients remains NPO for 8hrs before the test, and typically rests in bed about 6hrs after the test
Cholangiography