WorksheetsRNI MID-COURSE EXAM 2024
Total questions: 40
Worksheet time: 3600secs
Name
Class
Date
1.
1. An isotope of an element has the same number of __________ , but a different number of ___________ .
a)
Protons, electrons
b)
Electrons, neutrons
c)
Protons, neutrons
d)
Neutrons, protons
2.
2. A radioactive nuclide has a /an _________ stable nucleus than a non - radioactive nucleus of the same element.
a)
more
b)
less
c)
identical
d)
small
3.
3. _____________ is the process by which unstable atoms emit radiation until they become stable.
a)
Radiation
b)
Radioactive Decay
c)
Chemical Reaction
d)
Isotopic Transition
4.
4. An example of a naturally occurring radionuclide is
a)
Carbon-14
b)
Xenon-133
c)
Iodine-123
d)
Molybdenum-99
5.
5. The most - commonly used radionuclide is
a)
Iodine-131
b)
Technetium-99m
c)
Molybdenum-99
d)
Xenon-133
6.
6. An ideal radiopharmaceutical would have all the following characteristics except
a)
High target to non-target ratio
b)
No particulate emissions
c)
Long half-life
d)
Exhibit no toxicity
7.
7. The first gamma camera is also known by which of the following names?
a)
Hal camera
b)
Muller camera
c)
West camera
d)
Anger camera
8.
8. The ideal diagnostic radiopharmaceutical has an effective half-life of
a)
1 day
b)
1.5 times the biological half-life
c)
6 hours
d)
1.5 times the duration of the test
9.
9. Which of the following is the first object that an emitted gamma photon encounters after exiting the body?
a)
Collimator
b)
Detector crystal
c)
Photomultiplier tubes
d)
Position logic circuit
10.
10. When energy of an absorbed gamma photon is released, a flash of light is produced. This is similar to which of the following effects?
a)
Compton effect
b)
Photoelectric effect
c)
Pair production
d)
Collision effect
11.
11. What happens to the half-life of a radioactive substance as it decays?
a)
It remains constant.
b)
It increases.
c)
It decreases.
d)
It could do any of these.
12.
12. How is the positron emitter Fluorine-18 produced?
a)
Cyclotron
b)
Gamma camera
c)
Radioisotope generator
d)
Linear accelerator
13.
13. How is molybdenum-99 produced?
a)
Cyclotron
b)
Gamma camera
c)
Radioactive generator
d)
Nuclear reactor
14.
14. How do therapeutic radioisotopes generally compare to diagnostic radioisotopes?
a)
They have a longer half-life
b)
They have a higher energy
c)
They have a shorter half-life
d)
They have a lower energy
15.
15. The half-life of Molybdenum-99 is
a)
70 hours
b)
66 hours
c)
6 hours
d)
76 hours
16.
16. A Survey Meter is
a)
Used for checking the sensitivity of the Dose Calibrator
b)
An instrument used to measure radiopharmaceutical activity
c)
Used to check for radioactive contamination
d)
An instrument used to perform QC on the gamma camera
17.
17. Accuracy of the Dose Calibrator must be tested/checked:
a)
On installation
b)
At least annually
c)
Quarterly
d)
Both a and b
18.
18. Dynamic imaging can be performed using
a)
Rectilinear Scanner
b)
Gamma Camera and Rectilinear Scanner
c)
Gamma Camera
d)
Neither Rectilinear Scanner nor Gamma Camera
19.
19. The identity and chemical properties of an atom are determined by _________________
a)
Critical temperature
b)
Critical freezing point
c)
Melting temperature
d)
Number of protons
20.
20. The most basic measurement of gamma camera performance is
a)
Linearity
b)
Spatial Resolution
c)
Flood-field Uniformity
d)
Sensitivity
21.
21. The scintillation detector is a large flat crystal of which of the following materials?
a)
Sodium chloride
b)
Sodium iodide
c)
Sodium sulphate
d)
Sodium carbonate
22.
22. Iodine-131 has the following features
a)
Half-life of 6 hours and gamma energy of 364keV
b)
Half-life of 8 days and gamma energy of 364keV
c)
Half-life of 4 days and gamma energy of 124keV
d)
Half-Life of 8 days and gamma energy of 124keV
23.
23. Which of the following series represent radionuclides produced in a nuclear reactor?
a)
Mo-99; I-131; I-125; Xe-133 and Ir-192
b)
Tc-99m; I-131; C-14; Xe-133 and P-32
c)
I-125; Mo-99; P-32; Ir-192 and C-14
d)
I-131; Tc-99m; Xe-133; Tl-201 and Ir-192
24.
24. Which of the following collimators will magnify an image?
a)
Flatfield
b)
diverging
c)
high resolution
d)
converging
25.
25. Atoms with extra protons in the nucleus are called
a)
neutron-rich
b)
neutron-deficient
c)
electron-rich
d)
electron-deficient
26.
26. Most of the photons emitted from the radiopharmaceutical which has been administered to a patient:
a)
do not contribute to the final image.
b)
are received by the sodium iodide crystal.
c)
are converted to a voltage signal.
d)
a and b
27.
27. 5,550 MBq is equal to:
a)
15 curies (Ci)
b)
150 millicuries (mCi)
c)
150 curies (Ci)
d)
15 millicuries (mCi)
28.
28. For Lung Ventilation Imaging, the radioactive substance/tracer is introduced into the body by which route of administration?
a)
intramuscular
b)
inhalation
c)
intravenous
d)
topical
29.
29. The Z component of the signal in the photomultiplier tube will:
a)
be processed by the pulse height analyzer.
b)
be recorded on the CRT.
c)
be removed by the PMT
d)
all of the above
30.
30. Which of the following characteristics of I-131 make it a good therapeutic agent for the treatment of thyroid cancer?
a)
Half-life of 13.2 hours
b)
Beta emission
c)
Excretion by gastric mucosa
d)
High energy gamma emission
31.
31. Which of the following IS NOT a recommended means of reducing radiation exposure?
a)
Use of remote handling devices
b)
Applying shielding
c)
Limitation of time
d)
Wearing film badge
32.
32. How often should spatial resolution of a gamma camera system be checked?
a)
Daily
b)
Weekly
c)
Quarterly
d)
Annually
33.
33. “ELUTION” is a term related to Nuclear Medicine. To which method of radionuclide production is this term related?
a)
Generator
b)
Cyclotron
c)
Reactor
d)
Fission
34.
34. Indications for renal scanning with radionuclides include:
a)
Assess blood flow to transplanted kidneys
b)
Evaluation of glomerular filtration rate (GFR)
c)
Assess function of native kidneys
d)
Allergy to iodinated contrast media
e)
All of the above
35.
35. An area of decreased radionuclide uptake in a thyroid scan is called
a)
osteitis
b)
hydronephrosis
c)
“cold” nodule (cold spot)
d)
“hot” nodule (hot spot)
36.
36. In radionuclide imaging, the most useful pharmaceutical agent for skeletal imaging is _________
a)
Gallium 67
b)
Technetium-99m MDP
c)
Technetium-99m-Sulphur colloid
d)
Technetium 99m
37.
37. A perfusion lung scan shows a cold defeat in the right base. If the ventilation study for the same patient is normal, What is the most probable explanation for the defect?
a)
COPD
b)
Pulmonary embolism
c)
Attenuation from the heart
d)
Pacemaker
38.
38. Sr-89 Chloride is used to treat
a)
Nausea
b)
Thyroid Cancer
c)
Colon Cancer
d)
Bone Pain
39.
39. Which of the following is excreted by glomerular filtration?
a)
99mTc DTPA
b)
99mTc DMSA
c)
99mTc MAG3
d)
99mTc MAA
40.
40. A young man presents with a query fracture of the distal forearm. What type of nuclear medicine scan will be performed on this patient?
a)
Static bone scan
b)
Whole Body bone scan
c)
Dynamic bone scan
d)
3-phase bone scan
100 %
