Radiation Safety and Regulation Flashcards
What may happen if the proper centrifuge speed is not used during the separation of cell types for leukocyte labeling with 111In Oxine?
a) Platelets may be inadvertently labeled
b) Oxine 111 will not tag WBCs.
c) Red blood cells may become damaged
d) White blood cells may become damaged
d) White blood cells may become damaged.
Gravity sedimentation involves the settling of cells.
a) After centrifugation
b) After time has passed
c) After the syringe or test tube is inverted
d) After the sample has been placed over a magnet.
b) After time has passed.
OSHA requires that personnel exposure records be provided to employees.?
a) Monthly
b) Quarterly
c) Annually
d) Biannually
Annually
Which of the following must be kept for 5 years?
a) Records of misadministrations
b) Records of dose calibrator linearity
c) Records of doses assayed before administration
d) Area survey records
a) Records of misadministration.
Which of the following is not a misadministration?
a) When a dose of 400uCi of 99mTc MAA is given rather than 4mCi
b) When the correct dose of 111In Oxine for cisternography is injected intravenously
c) When a patient who should have been injected with 20mCi of 99mTc-HDP for a bone scan receives a capsule containing 250uCi of 123-I intended for a thyroid patient
d) When a patient who should have received 50mCi of 131-I receives 35mCi instead
e) None of the above
e) None of the above
A patient receives a unit dose of 89Sr chloride intended for another patient. Which of the following statements about this situation is true?
a) Because the patient received only a unit dosage of 89Sr, no report to the NRC is required
b) According to the NRC, this does not constitute a medical event, but a departmental record should be maintained
c) The situation describes a medical event that has to be reported only to the nuclear medicine supervisor and the authorized user
d) The situation describes a medical event requiring notification to the NRC.
d) The situation describes a medical event requiring notification to the NRC.
During the cleanup of a radioactive spill, must decontamination of the area continue until wipe checks reveal that?
a) The exposure rate of the area is less than 3mRem/hr
b) The exposure rate of the area can not be distinguished from background activity
c) The contamination is reduce to a small area
d) No more contamination can be removed from the area.
d) No more contamination can be removed from the area.
Which of the following isotopes would be effectively shielded by a plastic syringe?
a) Ga67
b) Sr89
c) Tcm99
d) Krm81
e) Xe133
b) Sr89
Which of the following should be used when administering an intravenous pharmaceutical to a patient?
a) Lead syringe shield
b) Leaded eyeglasses
c) Gloves
d) a and b
c) Gloves
Which of the following is the most effective means of measuring low levels of removable radiation?
a) By performing an area survey
b) By performing a wipe test
c) With a pocket dosimeter
d) With a TLD
b) By performing a wipe test
What is the dose rate limit at the package surface for a shipment of radioactive material bearing a yellow-III label?
a) 200mR/h
b) 50mR/h
c) 200rads
d) 200mrem
a) 200mR/h
OSHA requires that personnel exposure records be provided to employees.
a) Monthly
b) Quarterly
c) Annually
d) Biannually
c) Annually
A Spill of Tcm99 increases the exposure rate in a room from 1.7 to 3.15mR/h. The room is posted with a sign reading “Caution-Radioactive Materials”. What would be the ideal solution?
a) Change the sign to one reading “Caution-Radiation Area”
b) Call the NRC
c) Decontaminate the floor with water and cleanser
d) Place absorbent paper over the spill and close the room until the activity has delayed.
d) Place absorbent paper over the spill and close the room until the activity has delayed.
The doorway to the nuclear medicine reception area should be posted with?
a) Caution: Radiation Area
b) Caution: High Radiation Area
c) Grave Danger: Very High Radiation Area
d) Caution: Radioactive Materials
e) None of the above
e) None of the above
Which of the following steps would not decrease a technologist’s chance of internal exposure to radiation?
a) Wearing gloves during injection of RPH
b) Using tongs to transfer a vial from a lead shield to a dose calibrator
c) Working under fume hood when working with volatile liquid and radioactive gases
d) Refraining from smoking and eating in the Hot-lab
b) Using tongs to transfer a vial from a lead shield to a dose calibrator
Should any patient treated with Y90 Ibritumomab tiuxetan be hospitalized for at least 24 hours?
a) true
b) false
b) false
Which of the following must be done during disposal of a carton in which a shipment of I-131 was received?
a) RSO must be notified.
b) The carton must be stored for 10 half-lives before disposal.
c) Radioactive labels must be removed or obliterated
d) Carton must be discarded with biohazardous waste.
e) b and c
c) Radioactive labels must be removed or obliterated
Which materials is sufficient for shielding a therapeutic dose of Y90 Ibritumomab tiuxetan?
a) Lucite
b) Tungsten
c) Lead
d) none of the above
a) Lucite
What is the best choice for disposal of a vial containing 27mCiof Tc99m in 2mL of liquid?
a) Transfer to an authorized recipient
b) Incinerate
c) Bury
d) Store until decayed to the background
e) Release to the atmosphere through evaporation
a) Transfer to an authorized recipient
A pregnant tech receives 350mrem during her pregnancy according to a film badge worn at waist level. has the NRC dose limit for the fetus been exceeded?
a) Yes
b) No
b) No
Which of the following is not a misadministration?
a) When a dose of 400uCi Tc99m-MAA is given rather than 4mCi
b) When the correct dose of In111-Oxine for cisternography is injected intravenously
c) When a patient who should have received a capsule containing 250uCi of I1223 intended for thyroid patient
d) When a patient who should have received 50mCi of I131 receives 35mCi instead
e) None of the above
e) None of the above
