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Radiologic Examination MCQ Question with Answer

Radiologic Examination MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 36
What is the minimum estimate of GFR to take gadolinium-based contrast agents?

more than 30 mL/min/1.73 m2
more than 60 mL/min/1.73 m2
more than 90 mL/min/1.73 m2
none of the above
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Question No : 37
What should type II diabetic patients on metformin do when going for intravenous contrast urography to avoid biguanide lactic acidosis?

take urine acidifiers
withhold metformin the day before the study and restart 48 hrs. later
get premedicated by steroids and antihistamines
decrease metformin dose and turn to insulin
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Question No : 38
Which condition does NOT show a false positive result for hydronephrosis on ultrasonic examination?

hydrocalicosis
extrarenal pelvis
parapelvic cyst
class 2 Bosniak renal cyst
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Question No : 39
Which statement concerning phlebolith is false?

can be mistaken for a ureteral stone
is a small single, usually spiky, calcification within a vein
the amount of phleboliths increases with age
appears more often on the left than on the right side of the pelvis
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Question No : 40
What is the hallmark finding on plain KUB of bladder exstrophy?

malunion of lumbar and/or sacral vertebral bodies
pelvic bone diastasis
sacral agenesis
fracture of anterior pubic rami
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Question No : 41
Which statement is false concerning diuretic nuclear scintigraphy renogram?

an elimination T ½ < 10 minutes indicates obstructed system
the diuretic must be given at the maximum kidney activity
If ureteral stents are in place, the bladder catheter must be unclamped
99mTc-MAG3 is the agent of choice to study differential renal function and obstruction
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Question No : 42
Ultrasonic waves, in nature, are:

mechanical waves
radar waves
microwaves
radio waves
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