Genitourinary practice test Flashcards

1
Q

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

A

b

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2
Q

Excretion of 99mTc MAG3 is by:

a. active transport
b. tubular secretion
c. glomerular filtration
d. none of the above

A

b

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3
Q
Which renal imaging agent allows imaging at 6 hours
after injection?
a. 99mTc MAG3
b. 99mTc DTPA
c. 99mTc GH
d. 99mTc DMSA
A

d

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4
Q
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

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5
Q
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
A

c

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6
Q

Which of the following
is used to image the renal cortex?
a. 131I MIBG
b. 99mTc DMSA

A

b

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7
Q

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

A

b

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8
Q
Which of the following is excreted by glomerular
filtration?
a. 99mTc DTPA
b. 99mTc DMSA
c. 99mTc MAG3
d. 99mTc GH
A

a

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9
Q

) 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

A

e

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10
Q

Normal glomerular filtration rate is:

a. 25 mL/min
b. 50 mL/min
c. 100 mL/min
d. 125 mL/min

A

d

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11
Q

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

a

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12
Q

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

A

b

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13
Q

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

A

d

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14
Q

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

A

d

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15
Q

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

A

b

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16
Q

The left kidney is usually lower than the right because
of the spleen.
a. true
b. false

A

b

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17
Q

The kidneys are normally perfused via the iliac artery.

a. true
b. false

A

b

18
Q

Radionuclide cystography is most often performed to:

a. determine transplant function
b. evaluate renal perfusion
c. detect vesicoureteral reflux
d. visualize space occupying lesions in the bladder

A

c

19
Q

The expected bladder capacity for a six year old child is:

a. 50 ml
b. 120 ml
c. 240 ml
d. 500 ml

A

c

20
Q

The reason for calculation of expected bladder capacity
before radionuclide cystography is:
a. to use the result in calculations of residual volume
b. to use the result in calculations of reflux volume
c. to have an idea of when maximum bladder filling
will be reached
d. all of the above

A

c

21
Q

A technologist is performing radionuclide cystography
on a four year old girl. During bladder filling with
99mTc in saline, there is leakage from around the catheter.
What impact will this have?
a. quantitative information will be unreliable
b. the detector may become contaminated if it has
not been properly protected with plastic-backed,
absorbent paper
c. the chance to image any reflux is lost
d. a and b
e. b and c

A

d

22
Q

Which of the following describes normal images from
radionuclide cystography during bladder filling?
a. increasing activity in the bladder over time
b. homogeneous activity in both ureters
c. decreasing activity in the kidneys over time
d. none of the above

A

a

23
Q

Preparation for a pediatric radionuclide cystography
includes:
a. patient catheterization
b. calculation of expected bladder capacity
c. taking measures to prevent contamination
of equipment, personnel and imaging room
d. emptying the patient’s bladder
e. all of the above

A

e

24
Q

In normal patients, a volume of up to 1.5 ml may reflux
into the ureters and kidneys at maximum bladder filling.
a. true
b. false

A

b

25
Q
Voiding images taken during radionuclide cystography
should be:
a. dynamic images
b. acquired based on information density
c. 5 minute images
d. taken for 500 K counts
A

a

26
Q

Which of the following is not true regarding glomerular
filtration rate?
a. it usually becomes abnormal before serum creatinine
levels become abnormal
b. it is typically obtained through the use of 99mTc DTPA
c. it can be determined only by taking blood or urine
specimens
d. it is a measure of the ability of the kidneys to clear
inulin from the plasma
e. all except b

A

c

27
Q
Which radiopharmaceuticals can be used to determine
effective renal plasma flow?
a. 99mTc MAG3
b. 131I OIH
c. 99mTc DTPA
d. a and b only
e. a and c only
A

d

28
Q

An advantage of GFR and ERPF measurements over
other indicators of renal function such as BUN
and creatinine is that the function of each kidney can
be determined separately.
a. true
b. false

A

a

29
Q

Which saline bottle would be sufficient to fill the bladder
of an 8 year old during radionuclide cystography?
a. 125 ml
b. 250 ml
c. 400 ml
d. none of the above

A

c

30
Q
Which renal imaging agent requires the highest
administered dose?
a. 99mTc DTPA
b. 131I OIH
c. 99mTc MAG3
d. 99mTc DMSA
A

a

31
Q

A technologist prepares a radiopharmaceutical for
renal imaging at 8:00 a.m. The patient arrives late at
10:00 a.m. and therefore a new kit has to be made.
The radiopharmaceutical being used is:
a. 99mTc MAG3
b. 99mTc DMSA
c. 99mTc DTPA
d. 99mTc GH

A

b

32
Q

On a normal renal scan, gallbladder activity is noted.
This indicates that the scan was performed using:
a. 99mTc DMSA
b. 99mTc DTPA
c. 99mTc GH
d. 99mTc MAG3

A

d

33
Q
Following the injection of 99mTc GH imaging for adrenal
lesions is performed:
a. 6 hours later
b. 2-4 hours post injection
c. 48–72 hours later
d. 5–7 days later
e. none of the above
A

b

34
Q

The adrenal glands are:

a. superior to the kidney
b. inferior to the kidney
c. anterior to the kidney
d. posterior to the kidney

A

a

35
Q

Which of the following is a tuft of capillaries?

a. loop of Henle
b. the glomerulus
c. renal pyramid
d. collecting tubule

A

b

36
Q
What percentage of cardiac output is directed
to the kidneys?
a. 10%
b. 25%
c. 40%
d. 50%
A

b

37
Q

On otherwise normal static images of the kidneys,
the lower poles of the kidneys appear slightly decreased
in intensity relative to the upper poles. Why is this?
a. there is probably an obstruction of the collecting
system
b. there are bilateral space occupying lesions in the
lower poles
c. the adrenal glands are attenuating the activity
from the lower poles
d. the lower poles of the kidneys are situated slightly
anterior to the upper poles

A

d

38
Q

In a patient with renal artery stenosis:

a. a post captopril study will show increased GFR
b. a post captopril study will show decreased GFR
c. a post captopril study will show GFR to be unchanged

A

b

39
Q

When performing captopril renography, captopril
should be administered:
a. one hour prior to the injection of radiopharmaceutical
b. 20 minutes after the injection of radiopharmaceutical
c. only if activity persists in the renal pelvis 20 minutes
after radiopharmaceutical administration
d. at the same time as the injection as of radiopharmaceutical

A

a

40
Q

Preparation for captopril renography includes:

a. ACE inhibitors stopped
b. fasting to enhance absorption of oral captopril
c. well hydrated patient
d. all of the above
e. none of the above

A

d

41
Q

Captopril is used when:
a. the patient is suspected of having an obstruction
b. the patient is suspected of having renovascular
hypertension
c. the patient has high blood pressure
d. the patient is taking diuretics

A

b

42
Q

What will probably be done next, given the renogram
shown in Figure 11.2?
a. the patient will undergo captopril renography
b. posterior obliques should be taken
c. a diuretic will be given to rule out mechanical
obstruction
d. the exam will be ended
e. none of the above

A

c