Radiation Safety Local Rules: Multiple Choice Questions
What is the guiding principle that should be implemented in all matters related to radiation protection for facility workers and the public?
As High As Technically Possible (AHATP)
As Low As Reasonably Achievable (ALARA)
Justification and Optimization Only (JOO)
Basic Safety Standards (BSS)
Correct Answer: b) As Low As Reasonably Achievable (ALARA)
Which of the following is NOT a responsibility of the Radiation Safety Officer (RSO)?
Providing radiation safety training for staff members.
Maintaining the occupational exposure records of staff.
Performing surgical procedures on patients.
Arranging for the safe disposal of any radioactive waste.
Correct Answer: c) Performing surgical procedures on patients.
Which of the following is classified as a Supervised Area?
Hot lab.
Injected patients waiting area.
Radionuclide therapy suite.
Cyclotron suite.
Correct Answer: b) Injected patients waiting area.
To avoid skin contamination and accidental ingestion of a radionuclide, what should be worn when drawing up a dose or giving an injection?
A standard uniform.
Disposable plastic gloves.
Safety goggles only.
A lead apron.
Correct Answer: b) Disposable plastic gloves.
For how long must precautions generally be followed for an inpatient who has received a scan using Technetium-99m (Tc-99m)?
6 hours.
12 hours.
24 hours.
48 hours.
Correct Answer: c) 24 hours.
What is the required hygiene practice for a patient after receiving a diagnostic I-131 dose?
Flush the toilet once with the lid open.
Men should urinate standing up to be quicker.
Flush the toilet 3 times with the lid closed after each use.
Share towels and dishes with family members as normal.
Correct Answer: c) Flush the toilet 3 times with the lid closed after each use.
What is the recommended method for a patient to consume I-131 when it is administered as an oral solution?
The nurse pours it into a cup for the patient to drink.
The patient drinks it directly from the unshielded vial.
The patient sucks it up through a straw from the shielded vial.
The nurse injects the solution.
Correct Answer: c) The patient sucks it up through a straw from the shielded vial.
A patient undergoing Lu-177 therapy can be discharged when the dose rate at 1 meter is below what level?
100 µSv/hr.
50 µSv/hr.
25 µSv/hr.
5 µSv/hr.
Correct Answer: c) 25 µSv/hr.
What material is the primary shield used for Y-90 to absorb beta particles while generating little Bremsstrahlung?
10 cm of solid lead.
A standard lab coat.
1 to 3 cm of Lucite or plastic.
A thin sheet of aluminum foil.
Correct Answer: c) 1 to 3 cm of Lucite or plastic.
What is required if radioactive substances are to be transported outside the hospital premises?
They can be carried in any standard container.
They must be accompanied by a consignor's certificate and packaged per regulations.
Only a verbal approval from the RSO is needed.
The vehicle must have a police escort.
Correct Answer: b) They must be accompanied by a consignor's certificate and packaged per regulations.
A package has a surface radiation level of 0.4 mSv/hr and a radiation level at 1 meter of 8 µSv/hr. What label is required?
White-I
Yellow-II.
Yellow-III
No label is needed.
Correct Answer: b) Yellow-II.
For how long should solid radioactive waste be stored before it can be considered for disposal?
24 hours.
1 half-life of the radioisotope.
At least 10 half-lives of the radioisotope.
Indefinitely.
Correct Answer: c) At least 10 half-lives of the radioisotope.
If a staff member declares she is pregnant, what is the maximum recommended radiation dose the fetus should receive during the entire pregnancy period?
1 mSv.
5 mSv.
20 mSv.
50 mSv.
Correct Answer: a) 1 mSv.
What is the first thing you should do in the event of a major radioactive spill?
Begin cleaning up immediately.
Alert all persons in the area and confine the problem.
Call the hospital's main reception.
Take off your lab coat and leave the room.
Correct Answer: b) Alert all persons in the area and confine the problem.
If a minor wound becomes contaminated with radioactive material, what is the recommended procedure?
Ignore the contamination and only apply a bandage.
Wash the contaminated wound with abundant amounts of warm water.
Scrub the wound vigorously with a harsh chemical.
Immediately leave the hospital.
Correct Answer: b) Wash the contaminated wound with abundant amounts of warm water.
When cleaning a minor radioactive spill, in which direction should you work?
From the center of the spill outwards.
From the outside of the spill towards the center.
In a random pattern to cover the area quickly.
From top to bottom.
Correct Answer: b) From the outside of the spill towards the center.
Submit Answers