RDBG LO5/LO6 Review

The main responsibility of the referring physician is to:

• Order x-rays on all patients who request them

• Create the most diagnostic images possible

• Keep the radiation dose as low as reasonably achievable

• Ensure that all x-rays ordered are justified

While operating mobile equipment, where should the technologist stand?

• Stand 1m and directly behind the primary beam

• Stand 3m and directly behind the primary beam

• Stand 3m and 90 degrees from the primary beam

• Stand 1m and 90 degrees from the primary beam

All of the following are recommendations used to reduce dose to patients EXCEPT:

• Collimate to the largest field size

• Shield when possible

• Use long source to image distance (SOD) when possible

• Increased filtration

If absolutely required, who should assist in immobilization of the patient during the radiology procedure?

• The radiographer

• Parents and other non-radiation personnel

• A pregnant parent or other non-radiation personnel

• Anyone can assist

What combination of technical factors will reduce dose to sensitive tissues?

• Higher kVp and filtration and lower mAs

• Lower kVp and higher filtration and mAs

• Higher kVp and lower filtration and mAs

• Higher kVp, no filtration and lower mAs

Which of the following is NOT a requirement of SC35 when operating radioscopic (fluoroscopic) equipment?

• Use the shortest time

• Wear lead aprons and thyroid shields

• Use the smallest x-ray field size

• Use the largest x-ray field size

How long are dosimeter records kept for?

• 10 years

• Lifetime of the facility

• 5 years

• 1 year

The control panel must be located:

• At the foot end of the x-ray table

• At the head end of the x-ray table

• Behind a suitable protective barrier/radiation-absorbent window that permits the observation of the patient during any procedure

• Behind any regular wall that has a regular glass window that permits the observation of the patient during any procedure

Which of the following materials is commonly used in an x-ray exam table  to make it as radiolucent as possible so that it will absorb only a minimal amount of radiation, thereby reducing the patients radiation dose?

• Carbon fiber material

• Fomica

• Granite

• Slate

The minimal source to skin distance for mobile fluoro procedures is:

• 15 cm

• 30 cm

• 38 cm

• 45 cm