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In an area where radiation is present and the possible dose a person may receive is ≥ 1 mSv in one hour at 30 cm from a source, which radiation sign should be posted?

A person received 17 Gy of photons to their bone marrow. What is the equivalent dose?

A linear accelerator that treats 95 patients per week with an average isocenter dose of 2 Gy is 5 meters from a wall that divides the treatment room from a stairway. Calculate the transmission (B). Round to 5 decimal places.

If a conventional fractionation scheme for a treatment is 200 cGy/fraction given once per day, which of the following fractionation schemes is considered hypofractionation?  Choose all that apply.   A. 115 cGy/fraction given BID B. 160 cGy/fraction given once per day C. 240 cGy/fraction given once per day D. 500 cGy/fraction given every other day

Which of the following are true regarding the lateral projection of the nasal bones? 1. Only the affected side is performed 2. Non-grid method is used 3. IPL is perpendicular to the IR

‘D’ is the: Q38_41(3).jpg

Which of the following are the typical routine projections for the following exam?               Mandible 4V               Select all that apply

Contrast used in MRI for myelography studies.

Which line is placed perpendicular to the plane of the IR for a Modified AP Townes Projection of the zygomaticarches when angling 30 degrees caudal?