Contrast Media Flashcards
What are the two types of contrast media?
- Radiolucent (negative)
- Radiopaque (positive)
How many types of contrast media is there?
2
what type of contrast media is radiolucent?
Negative
What type of contrast media is radiopaque?
Positive
What is the purpose of contrast media?
- Visualize anatomic detail
- Distinguish between radiographic densities in anatomic tissues
What is contrast media?
Diagnostic agents that are instilled into body orifices or injected into the vascular system, joints, and ducts to enhance subjected contrast in anatomic areas where low subjects contrast exists
How many routes of administration are there for contrast media?
4
What are the routes of contrast administration?
- Oral
- Rectal
- Retrograde
- Parenteral (Intravenous, Intra-arterial, Intrathecal)
Where is the oral route taken?
Ingested by mouth
Where is the rectal route taken?
Administered rectally
Where is the retrograde route taken?
Administered against the normal flow
Where is the parenteral route taken? What are the routes?
- Administered by injection using a needle
- Intravenous (Administered into a vein)
- Intra-arterial (Administered into an artery)
- Intrathecal (Administered into a sheath)
What are some exams that are taken retrograde?
- Cystogram
- VCUG
- Barium enema
What are some exams that are taken rectal?
Barium enema
What are some exams that are taken oral?
- Upper GI
- Esophagram
- Rehab swallow study
