Methods of decreasing patient exposure during fluoroscopic procedures include 1. using a low pulse rate 2. minimizing the use of  mag or “boost” mode 3. using high kilovoltage/low milliampere combination

X-rays and gamma rays used in diagnostic imaging are: not of concern because the beam is filtered part of natural background dose part of artificial background radiation dose

Which of the following occurs when radiation transfers it energy to DNA?

The ESE for a particular exposure is 1.1 mGy, what will be the intensity of the scattered beam perpendicular to and 1 m from the patient?

Which of the following safeguards can be taken to prevent inadvertent irradiation in early pregnancy? 1. patient postings of notification of pregnancy 2. patient questionnaire 3. elective booking

What occurs when radiation transfers its energy to the cellular cytoplasm? 

Cells are more radiosensitive when

What are graphs called that show the relationship between dose of radiation received and incidence of effects?

The correct way(s) to check for cracks in lead aprons is/are 1. to fluoroscope them once a year 2. to radiography them at low kilovoltage twice a year 3. by visual inspection

The uppermost collimator shutter functions to eliminate