Genitourinary practice test Flashcards
What is the imaging protocol that was most probably
used to obtain the images in Figure 11.1 (see p. 101)?
a. consecutive 1 second images for 15 seconds
b. consecutive 3 second images for 45 seconds
c. 15 consecutive 10 second images
d. 15 consecutive 15 second images
b
Excretion of 99mTc MAG3 is by:
a. active transport
b. tubular secretion
c. glomerular filtration
d. none of the above
b
Which renal imaging agent allows imaging at 6 hours after injection? a. 99mTc MAG3 b. 99mTc DTPA c. 99mTc GH d. 99mTc DMSA
d
A patient with Cushing’s syndrome might receive a dose of: a. 99mTc DMSA to study the renal cortex b. 99mTc DMSA to study the renal medulla c. 131I MIBG to study the renal cortex d. 131I MIBG to study the renal medulla
a
A patient who receives an injection of 131I MIBG for the detection of pheochromocytoma should also receive: a. potassium perchlorate b. dipyridamole c. Lugol’s solution d. cimetidine
c
Which of the following
is used to image the renal cortex?
a. 131I MIBG
b. 99mTc DMSA
b
99mTc DMSA delivers a relatively high radiation dose to
the kidneys because:
a. 20 mCi are normally injected for a renal study
b. there is a long effective half life in the kidneys
c. there is a long physical half life
d. a high energy photon is emitted
b
Which of the following is excreted by glomerular filtration? a. 99mTc DTPA b. 99mTc DMSA c. 99mTc MAG3 d. 99mTc GH
a
) Indications for renal scanning with radionuclides
include:
a. assess blood flow to transplanted kidneys
b. allergy to iodinated contrast
c. assess function of native kidneys
d. evaluation of space occupying lesions
e. all of the above
e
Normal glomerular filtration rate is:
a. 25 mL/min
b. 50 mL/min
c. 100 mL/min
d. 125 mL/min
d
For visualizing intraparenchymal lesions in the kidneys,
the radiopharmaceutical of choice from the list below is:
a. 99mTc DMSA
b. 99mTc DTPA
c. 99mTc MAG3
d. 131I OIH
a
What is the preparation for renal functional imaging
with 99mTc MAG3?
a. NPO for at least four hours
b. patient must be well hydrated
c. patient must not void for at least one hour before
imaging
d. patient must drink nothing for two hours prior
to the examination
e. all patients must be catheterized
b
Thirty minutes after injection of 8 mCi of 99mTc MAG3,
there is significant activity remaining in the renal pelvis.
What will most likely follow?
a. patient will be asked to void before reimaging
b. a diuretic will be administered
c. imaging will be extended for 20 minutes
d. all of the above
d
If after administration of furosemide, a patient still has
activity in the renal calyces, there is probably:
a. poor renal function
b. renal artery occlusion
c. renal infarction
d. collecting system obstruction
d
Performing an evaluation of a renal transplant includes
the following considerations:
a. best imaging will be obtained posteriorly
b. detector face should be centered over the right
or left iliac fossa
c. a lower dose of 99mTc MAG3 should be given
to protect the transplant
d. uptake of radiopharmaceutical is usually delayed
in transplanted kidneys relative to native
e. all of the above
b
The left kidney is usually lower than the right because
of the spleen.
a. true
b. false
b