Radiation Protection In Medical Radiography -
Questions With Insightful Solutions (A+)
Effective Dose Limit Correct Answer - Annual occupational EfD is 50 mSv
maximum.
Lifetime EfD Correct Answer - Should not exceed 10 times age in years.
Cumulative Effective Dose (CumEfD) Correct Answer - Limit equals
lifetime EfD for whole body.
Nonoccupational Dose Limits Correct Answer - 1 mSv for continuous, 5
mSv for infrequent exposure.
ALARA Concept Correct Answer - As Low As Reasonably Achievable
radiation exposure.
Patient Restraint Correct Answer - Never restrain in primary beam; use
protective gear.
Pregnant Personnel Protocol Correct Answer - Pregnancy must be
declared for protection measures.
Radiation Dosimeter Correct Answer - Monitors radiation exposure to
embryo-fetus.
Maternity Aprons Correct Answer - 0.5-mm lead equivalent for embryo-
fetus protection.
Embryo-fetus EqD Limit Correct Answer - Monthly limit is 0.5 mSv, total
5.0 mSv.
Radiation Protection Principles Correct Answer - Time, distance, and
shielding minimize exposure.
Primary Protective Barrier Correct Answer - Prevents primary beam from
reaching personnel.
, Secondary Protective Barrier Correct Answer - Protects against scatter
and leakage radiation.
Control Booth Barrier Correct Answer - Protects radiographer from
secondary radiation.
Clear Lead-Acrylic Barrier Correct Answer - 30% lead by weight for
secondary protection.
Overhead Protective Barrier Correct Answer - 0.5-mm lead equivalency
for overhead shielding.
Accessory Protective Devices Correct Answer - Includes aprons, gloves,
and thyroid shields.
Apron Requirements Correct Answer - Minimum 0.25-mm lead for 100
kVp.
Glove Requirements Correct Answer - 0.25-mm lead equivalent is
standard.
Thyroid Shield Requirements Correct Answer - Minimum 0.5-mm lead for
thyroid protection.
Protective Eyeglasses Correct Answer - Reduce scatter radiation to eye
lenses.
X-ray Tube Housing Correct Answer - Protects operator from electrical
shock.
High-Tension Cables Correct Answer - Avoid handling during exposure to
prevent shock.
Radiation Safety Counseling Correct Answer - Pregnant personnel must
acknowledge understanding.
Radiation Exposure Measurement Correct Answer - Exposure should not
exceed 1 mSv per week.
Questions With Insightful Solutions (A+)
Effective Dose Limit Correct Answer - Annual occupational EfD is 50 mSv
maximum.
Lifetime EfD Correct Answer - Should not exceed 10 times age in years.
Cumulative Effective Dose (CumEfD) Correct Answer - Limit equals
lifetime EfD for whole body.
Nonoccupational Dose Limits Correct Answer - 1 mSv for continuous, 5
mSv for infrequent exposure.
ALARA Concept Correct Answer - As Low As Reasonably Achievable
radiation exposure.
Patient Restraint Correct Answer - Never restrain in primary beam; use
protective gear.
Pregnant Personnel Protocol Correct Answer - Pregnancy must be
declared for protection measures.
Radiation Dosimeter Correct Answer - Monitors radiation exposure to
embryo-fetus.
Maternity Aprons Correct Answer - 0.5-mm lead equivalent for embryo-
fetus protection.
Embryo-fetus EqD Limit Correct Answer - Monthly limit is 0.5 mSv, total
5.0 mSv.
Radiation Protection Principles Correct Answer - Time, distance, and
shielding minimize exposure.
Primary Protective Barrier Correct Answer - Prevents primary beam from
reaching personnel.
, Secondary Protective Barrier Correct Answer - Protects against scatter
and leakage radiation.
Control Booth Barrier Correct Answer - Protects radiographer from
secondary radiation.
Clear Lead-Acrylic Barrier Correct Answer - 30% lead by weight for
secondary protection.
Overhead Protective Barrier Correct Answer - 0.5-mm lead equivalency
for overhead shielding.
Accessory Protective Devices Correct Answer - Includes aprons, gloves,
and thyroid shields.
Apron Requirements Correct Answer - Minimum 0.25-mm lead for 100
kVp.
Glove Requirements Correct Answer - 0.25-mm lead equivalent is
standard.
Thyroid Shield Requirements Correct Answer - Minimum 0.5-mm lead for
thyroid protection.
Protective Eyeglasses Correct Answer - Reduce scatter radiation to eye
lenses.
X-ray Tube Housing Correct Answer - Protects operator from electrical
shock.
High-Tension Cables Correct Answer - Avoid handling during exposure to
prevent shock.
Radiation Safety Counseling Correct Answer - Pregnant personnel must
acknowledge understanding.
Radiation Exposure Measurement Correct Answer - Exposure should not
exceed 1 mSv per week.
