Abdomen/Urogram

Question 1

What is the venous phase of IV contrast enhancement in the kidneys called?

Answer 1

Nephrographic phase

This phase occurs at 90 seconds after contrast administration.

Question 2

What is the arterial phase of contrast enhancement in the kidneys called?

Answer 2

Corticomedullary phase

This phase occurs at 30 seconds after contrast administration.

Question 3

What is the excretory phase of contrast enhancement in the kidneys?

Answer 3

Delayed phase

This phase occurs at 5 to 10 minutes after contrast administration.

Question 4

Why is it important for a patient not to void before a urogram procedure?

Answer 4

To maintain contrast filling in the collecting system

Voiding before the scan would empty the contrast from the ureters and bladder, defeating the purpose of the scan.

Question 5

How long after contrast administration does the nephrographic phase occur?

Answer 5

90 seconds

This is the time frame for the venous phase of contrast enhancement.

Question 6

How long after contrast administration does the corticomedullary phase occur?

Answer 6

30 seconds

This is the time frame for the arterial phase of contrast enhancement.

Question 7

What time frame defines the delayed phase of contrast enhancement in the kidneys?

Answer 7

5 to 10 minutes

This phase is also known as the excretory phase.