CT Week 2

Question 1

Positive agents have a — density than the structures

Answer 1

Higher

Question 2

4 routes of contrast administration

Answer 2

Oral
Rectal
Intravenous/ intra-arterial
Intrathecal

Question 3

Mechanical bolus advantages

Answer 3

Precise flow rate
Consistent / reproducible
Programmable

Question 4

Anaphylactic reaction

Answer 4

Severe reaction occurring immediately after exposure to a drug; characterized by respiratory distress and vascular collapse triggered by immunoglobulin E

Question 5

Barium should NOT be used for

Answer 5

Patient with suspected GI Perforation/trauma

Question 6

Examples of positive agents

Answer 6

Barium

Iodine

Question 7

Neutral agents have similar density to

Answer 7

Water

Question 8

3 phases of tissue enhancement

Answer 8

Bolus phase
Non equilibrium phase
Equilibrium phase

Question 9

Delayed side effects

Answer 9

Skin: itching, rash, hives
GI: nausea, vomiting, diarrhea
General: headache, dizziness, fever

Question 10

Examples of negative agents

Answer 10

Air

CO2