FINALS Flashcards
(157 cards)
rad. study of the biliary system (Liver, gallbladder and biliary ducts)
CHOLEGRAPHY
Procedures included in cholegraphy
- Cholecystography
- Cholangiography
- Cholecystangiography/ Cholecystocholangiography
Routes in cholegraphy
- Mouth
- Injection to vein
- Direct injection to ducts
Indications of cholegraphy
- FX of the liver
- Patency & condition of the biliary ducts
- Concentrating and emptying power of the gallbladder
- R/O calculi or stones formed in the biliary tract
Different types of body habitus
- Hypersthenic
- Sthenic
- Hyposthenic
- Asthenic
rad. examination of the gallbladder through the oral admin of contrast media
ORAL CHOLECYSTOGRAM
Contraindications of cholecystogram
- Vomiting or diarrhea
- Pyloric obstruction
- Malabsorption syndrome
- Severe jaundice
- Liver dysfunction
- Hepatocellular disease
- Hypersensitivity to iodinated contrast media
When should laxatives be given to a patient having OCG
24 hrs before injestion/injection of CM
What kind of meal should be given to a patient having OCG
fat free meal
On a OCG procedure, CM is given in a _____ dose approx. _______ hrs after _______ meal on the _______ before exam
single, 2-3, evening, night
The usual single dose form given to patients who will have an OCG
3 g in form of 4-12 tablets
Clinical indications of OCG
Biliary calculi
CHolecystitis
Neoplasms
Biliary stenosis
stones in biliary ducts
Choledocholithiasis
– abnormal calcifications in gallbladder
Cholelithiasis
Procedures in OCG
A. Recumbent PA Proj. (Scout
B. Upright PA Proj
C. PA Oblique (LAO)
D. R. Lat.
E. AP Proj (R. Lat Decub)
Answer the following:
Recumbent Pa Projection (scout)
IP
BP
MSP
RP
CR
RESP
SS
A. Recumbent PA Proj. (Scout)
IR: 10x12 LW
BP: Prone Position
MSP: R. side of abdomen centered on midline of grid/table
RP: Last rib
CR: Perpendicular to RP
RESP: Suspended expiration
SS: Somewhat opacified gallbladder
Answer the following:
Upright PA Proj
IP
BP
MSP
RP
CR
RESP
SS
IR: 8x10 LW
BP: Upright Position, anterior side of body resting against IR
MSP: R. side of the abdomen centered on midline of grid/table
RP: 2-4 inches below last rib
CR: Horizontally directed to RP
RESP: Suspended expiration
SS: Axial representation of the opacified gallbladder
Answer the following:
PA OBLIQUE (LAO)
IP
BP
MSP
RP
CR
RESP
SS
IR: 8x10 LW
BP: Recumbent position
MSP: With px in the prone posi, elevate R side to the desired degree of obliquity (15° - 40°).
RP: At the level of the last rib
CR: Perpendicular to RP
RESP: Suspended expiration
SS: Shows opacified gallbladder free from self-superimposition
Answer the following:
R LAT
IP
BP
MSP
RP
CR
RESP
SS
IR: 8x10 LW
BP: Recumbent position
MSP: Px lies on the R side
RP: level of the last rib
CR: Perpendicular to RP
RESP: Suspended expiration
SS: Differentiate gallstones from renal stones and separate superimposition of gallbladder and the vertebrae in exceptionally thin px
Answer the following:
AP PROJECTION (R. LAT DECUBITUS)
IP
BP
MSP
RP
CR
RESP
SS
IR: 8x10 or 10x12 LW
BP: Lat. recum. position
MSP: Place px on the R side w/ body elevated 2 to 3 Inches
RP: Level of the last rib
CR: Horizontally directed to RP
RESP: Suspended expiration
SS: Demo stones that are heavier than bile and that are too small to be visible
Procedure where its indications include:
- Investigate biliary ducts of cholecystectomized pxs
- Investigate biliary ducts & gallbladder of non-cholecystectomized pxs when these structures are not visualized by OCG
- Severe vomiting & diarrhea
Intravenous cholangiography
Contraindications of intravenous cholangiography
- Px who have liver disease
- Non-intact biliary ducts
- Obstructive jaundice
Employed for pre-op rad exam of biliary tract
PERCUATENOUS TRANSHEPATIC CHOLANGIOGRAPHY (PTC)
what kind of needle is used in PTC
CHIBA “SKINNY” NEEDLE