Q274: In which one of the following conditions the
Sialography is contraindicated ?
A) Ductal calculus
B) Chronic parotitis
C) Acute parotitis
D) Recurrent sialadenitis
Answer: C) Acute parotitis
Q275: Which of the following ultrasound marker is
associated with greatest increased risk for Trisomy 21 in fetus ?
A) Echogenic foci in heart
B) Hyperechogenic bowel
C) Choroid plexus cysts
D) Nuchal edema
Answer: D) Nuchal edema
Q276: Which one of the following is the most
preferred route to perform cerebral angiography ?
A) Transfemoral route
B) Transaxillary route
C) Direct carotid puncture
D) Transbrachial route
Answer: A) Transfemoral route
Q277: Which one of the following tumor shows
calcification on CT Scan ?
A) Ependymoma
B) Medulloblastoma
C) Meningioma
D) CNS Lymphoma
Answer: C) Meningioma
Q278: Gamma camera in Nuclear Medicine is used for ?
A) Organ imaging
B) Measuring the radioactivity
C) Monitoring the surface contamination
D) RIA
Answer: B) Measuring the radioactivity
Q279: The most sensitive imaging modality for
diagnosis of ureteric stones in a patient with acute colic is ?
A) X-ray KUB region
B) Ultrasonogram
C) Non contrast CT scan of the abdomen
D) Contrast enhanced CT scan of the abdomen
Answer: C) Non contrast CT scan of the abdomen
Q280: Which one of the following radioisotope is not
used as permanent implant ?
A) Iodine-125
B) Palladium-103
C) Gold-198
D) Caesium-137
Answer: D) Caesium-137
Q281: The technique employed in radiotherapy to
counteract the effect of tumor motion due to breathing is known as ?
A) Arc technique
B) Modulation
C) Gating
D) Shunting
Answer: C) Gating
Q282: At t=0, there are 6 x 1023 radioactive atoms
of a substance, which decay with a disintegration constant (lambda) equal to
0.01/sec. What would be the initial decay rate ?
A) 6 x 1023
B) 6 x 1022
C) 6 x 1021
D) 6 x 1020
Answer: C) 6 x 1021
