Oct 29, 2012 - Medical Quiz    Comments Off

Radiology

Random 20 Questions

Question 1
Walls of the CT scanner room are coated with:
A
Lead
B
Glass
C
Tungsten
D
Iron
Question 2
The major difference between X-Rays and Light is
A
Energy
B
Mass
C
Speed
D
Type of wave
Question 3
Which of the following is the most ionizing radiation
A
Alpha
B
Beta
C
X Rays
D
Gamma
Question 4
Which of the following statements best describes 'Background Radiation'
A
Radiation in the background of nuclear reactors
B
Radiation in the background during radiological investigations
C
Radiation present constantly from natural sources
D
Radiation from nuclear fallout
Question 5
Which of the following best estimates the amount of radiation delivered to an organ in the radiation field
A
Absorbed dose
B
Equivalent dose
C
Effective dose
D
Exposure dose
Question 6
Which of the following statements about 'Stochastic effects' of radiation is true
A
Severity of effect is a function of dose
B
Probability of effect is a function of dose
C
It has a threshold
D
Erythema and cataract are common examples
Question 7
'Egg on Side' Appearance is seen in
A
Tricuspid Atresia
B
Tetralogy of fallot
C
Total Anomalous Pulmonary Venous Connection (TAPVC)
D
Transposition of great arteries
Question 8
All of the following statements about CT scan features of adrenal adenoma are true, Except
A
Calcification is Rare
B
Low Attenuation
C
Early enhancement with slow wash out of contrast
D
Regular margins
Question 9
A patient presents with acute renal failure and anuria. The USG is normal. Which of the following investigation will give best information regarding renal function.
A
Intravenous Pyelogram
B
Retrograde Pyelography
C
Antegrade Pyelography
D
DTPA scan
Question 10
A dense renogram is obtained by
A
Dehydrating the patient
B
Increasing the dose of contrast media
C
Rapid (Bolus) injection of dye
D
Using non ionic media
Question 11
A male was brought unconscious to the hospital with external injuries.CT brain showed no midline shift,but basal cisterns were compressed with multiple small hemorrhages.What is the diagnosis:
A
Cortical contusion
B
Cerebral laceration
C
Multiple infarcts
D
Diffuse axonal injuries
Question 12
A newborn presents with congestive heart failure,on examination has bulging anterior fontanellac with a bruit on ausculation. Transfontanellar USG shows a hypoechoic midline mass with dilated lateral ventricles.Most likely diagnosis is:
A
Medulloblastoma
B
Encephalocele
C
Vein of Galen malformation
D
Arachnoid cyst
Question 13
A 48 yr old woman comes with b/I progressive weakness of both lower limbs spasticity & mild impairment of respiratory movements.MRI shows an intradural mid-dorsal midine enhancing lesion.What is the diagnosis?
A
Intradural lipoma
B
Meningioma
C
Neuroenteric cyst
D
Dermoid cyst
Question 14
Which of the following feature of thyroid module on USG is not sugestive of malignancy?
A
Hyperechogenecity
B
Hypoechogenecity
C
Non-homogenous
D
Microcalcification
Question 15
Investigation of choice for a lesion of temporal bone:
A
CT
B
MRI
C
USG
D
Plain X-ray
Question 16
Gamma camera in Nuclear Medicine is used for
A
Organ imaging
B
Measuring the radioactivity
C
Monitoring the surface contamination
D
RIA
Question 17
In radionuclide imaging the most useful radio pharamaceutical for skeletal imaging is:
A
Gallium 67(67Ga)
B
Technetium-Sulphur-colloid(99m Tc-Sc)
C
Technetium-99m linked to Met6hylene
D
disphosphonate(99m Tc-MDP)
Question 18
Which one of the following radioisotope is not used as permanent implant:
A
Iodine-125
B
Palladium-103
C
Gold-198
D
Caesium-137
Question 19
The technique employed in radiotherapy to counteract the effect of tumour motion due to breathing is known as;
A
Are technique
B
Modulation
C
Gating
D
Shunting
Question 20
At t=0 there are 6x10[sup]23[/sup] radioactive atoms of a substance,which decay with a disintegration constant λ equal to 0.01/sec.What would be the initial decay rate?
A
6x10[sup]23[/sup]
B
6x10[sup]22[/sup]
C
6x10[sup]21[/sup]
D
6x10[sup]20[/sup]
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All Questions

Question 1
Walls of the CT scanner room are coated with:
A
Lead
B
Glass
C
Tungsten
D
Iron
Question 2
The major difference between X-Rays and Light is
A
Energy
B
Mass
C
Speed
D
Type of wave
Question 3
Which of the following is the most ionizing radiation
A
Alpha
B
Beta
C
X Rays
D
Gamma
Question 4
Which of the following statements best describes 'Background Radiation'
A
Radiation in the background of nuclear reactors
B
Radiation in the background during radiological investigations
C
Radiation present constantly from natural sources
D
Radiation from nuclear fallout
Question 5
Which of the following best estimates the amount of radiation delivered to an organ in the radiation field
A
Absorbed dose
B
Equivalent dose
C
Effective dose
D
Exposure dose
Question 6
Which of the following statements about 'Stochastic effects' of radiation is true
A
Severity of effect is a function of dose
B
Probability of effect is a function of dose
C
It has a threshold
D
Erythema and cataract are common examples
Question 7
'Egg on Side' Appearance is seen in
A
Tricuspid Atresia
B
Tetralogy of fallot
C
Total Anomalous Pulmonary Venous Connection (TAPVC)
D
Transposition of great arteries
Question 8
All of the following statements about CT scan features of adrenal adenoma are true, Except
A
Calcification is Rare
B
Low Attenuation
C
Early enhancement with slow wash out of contrast
D
Regular margins
Question 9
A patient presents with acute renal failure and anuria. The USG is normal. Which of the following investigation will give best information regarding renal function.
A
Intravenous Pyelogram
B
Retrograde Pyelography
C
Antegrade Pyelography
D
DTPA scan
Question 10
A dense renogram is obtained by
A
Dehydrating the patient
B
Increasing the dose of contrast media
C
Rapid (Bolus) injection of dye
D
Using non ionic media
Question 11
A male was brought unconscious to the hospital with external injuries.CT brain showed no midline shift,but basal cisterns were compressed with multiple small hemorrhages.What is the diagnosis:
A
Cortical contusion
B
Cerebral laceration
C
Multiple infarcts
D
Diffuse axonal injuries
Question 12
A newborn presents with congestive heart failure,on examination has bulging anterior fontanellac with a bruit on ausculation. Transfontanellar USG shows a hypoechoic midline mass with dilated lateral ventricles.Most likely diagnosis is:
A
Medulloblastoma
B
Encephalocele
C
Vein of Galen malformation
D
Arachnoid cyst
Question 13
A 48 yr old woman comes with b/I progressive weakness of both lower limbs spasticity & mild impairment of respiratory movements.MRI shows an intradural mid-dorsal midine enhancing lesion.What is the diagnosis?
A
Intradural lipoma
B
Meningioma
C
Neuroenteric cyst
D
Dermoid cyst
Question 14
Which of the following feature of thyroid module on USG is not sugestive of malignancy?
A
Hyperechogenecity
B
Hypoechogenecity
C
Non-homogenous
D
Microcalcification
Question 15
Investigation of choice for a lesion of temporal bone:
A
CT
B
MRI
C
USG
D
Plain X-ray
Question 16
Gamma camera in Nuclear Medicine is used for
A
Organ imaging
B
Measuring the radioactivity
C
Monitoring the surface contamination
D
RIA
Question 17
In radionuclide imaging the most useful radio pharamaceutical for skeletal imaging is:
A
Gallium 67(67Ga)
B
Technetium-Sulphur-colloid(99m Tc-Sc)
C
Technetium-99m linked to Met6hylene
D
disphosphonate(99m Tc-MDP)
Question 18
Which one of the following radioisotope is not used as permanent implant:
A
Iodine-125
B
Palladium-103
C
Gold-198
D
Caesium-137
Question 19
The technique employed in radiotherapy to counteract the effect of tumour motion due to breathing is known as;
A
Are technique
B
Modulation
C
Gating
D
Shunting
Question 20
At t=0 there are 6x10[sup]23[/sup] radioactive atoms of a substance,which decay with a disintegration constant λ equal to 0.01/sec.What would be the initial decay rate?
A
6x10[sup]23[/sup]
B
6x10[sup]22[/sup]
C
6x10[sup]21[/sup]
D
6x10[sup]20[/sup]
Question 21
The gold standard for the diagnosis of osteoporosis is:
A
Dual energy x-ray absorptiometry
B
single energy x-ray absorptiometry
C
Ultrasound
D
Quantitative computed tomography
Question 22
The most sensitive imaging modality for diagnosis Ureteric stones in a patient with acute colic is:
A
X-ray KUB region
B
Ultrasonogran
C
Non contrast CT scan of the abdomen
D
Contrast enhanced CT scan of the abdomen
Question 23
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 cyst
D
Nuchal edema
Question 24
Which one of the following is most preferred route for perform cerebral angiography?
A
Transfemoral route
B
Transaxillary route
C
Drect carotid puncture
D
Transbrachial route
Question 25
Which one of the following tumours shows calcification on ct scan:
A
Ependymoma
B
Meduloblastoma
C
Meningioma
D
CNS lymphoma
Question 26
On barium swallow which of the following will cause posterior impression:
A
Left atrium
B
Aortic knuckle
C
Pulmonary sling
D
Aberrant right subclavian artery
Question 27
Rib notching is seen in all except:
A
Waterston Cooley shunt
B
Aortic disruption
C
Blalock Taussing shunt
D
Pulmonary atresia with large VSD
Question 28
Which one of the following has the maximum ionization potential
A
Electron
B
Proton
C
Helium ion
D
Gamma - Photon
Question 29
All of the following radioisotopes are used as systemic radionucleide, except
A
Phosphorus 32
B
Strontium 89
C
Iridium 192
D
Samarium 153
Question 30
Phosphorus 32 emits:
A
Beta particles
B
Alpha Particles
C
Neutrons
D
X-rays
Question 31
Which of the following is used in the treatment of differentiated thyroid cancer?
A
l31 I
B
99m Tc
C
32 P
D
131 I-mIBG
Question 32
All of them use non-ionizing radiation, except:
A
Ultrasonography
B
Thermography
C
MRI
D
Radiography
Question 33
Which one of the following imaging techniques gives maximum radiation exposure to the patient?
A
Chest X-ray
B
MRI
C
CT scan
D
Bone-scan
Question 34
The ideal timing of radiotherapy for Wilms tumour after surgery is:
A
Within 10 days
B
Within 2 weeks
C
Within 3 weeks
D
Any time after surgery
Question 35
The most radiosensitive tumor among the following is:
A
Bronchogenic carcinoma
B
Carcinoma parotid
C
Dysgerminoma
D
Osteogenic sarcoma
Question 36
Which of the following causes rib-notching on the chest radiograph?
A
Bidirectional Glem shunt
B
Modified Blalock- Taussing shunt
C
IVC occlusion
D
Coarctation of aorta
Question 37
Which is the objective sign of identifying pulmonary plethora in a chest radiograph?
A
Diameter of the main pulmonary artery > 16 mm
B
Diameter of the left pulmonary artery > 16 mm
C
Diameter of the descending right pulmonary artery > 16 mm
D
Diameter of the descending left pulmonary artery > 16mm
Question 38
The procedure of choice for the evaluation of an aneurysm is:
A
Ultrasonography
B
Computed tomography
C
Magnetic resonance imaging
D
Arteriography
Question 39
The most sensitive imaging modality to detect early renal tuberculosis is:
A
Intravenous urography
B
Computed tomography
C
Ultrasound
D
Magnetic resonance imaging
Question 40
The most accurate investigation for assessing ventricular function is:
A
Multislice CT
B
Echocardiography
C
Nuclear scan
D
MRI
Question 41
The most important sign of significance of renal artery stenosis on an angiogram is:
A
A percentage diameter stenosis > 70%
B
Presence of collaterals
C
A systolic pressure gradient> 20 mm Hg across the lesion
D
Post-stenotic dilatation of the renal artery
Question 42
The MR imaging in multiple sclerosis will show lesions in:
A
White matter
B
Grey matter
C
Thalamus
D
Basal ganglia
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Atul Tiwari (21 Posts)

Medical Officer, Pratapgarh (Raj)


  

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