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1.      A single PA spine field measuring 11 x 7 cm is being treated with a 6 MV beam at a distance of 100 cm. Calculate the monitor units needed per field to deliver 300 cGy to a depth of 4 cm.

1.      A patient was planned to receive 200 cGy to a field measuring 12.5 cm x 16.3 cm at isocenter. If the patient measures 24 cm, calculate the size of the field on the skin surface if isocenter is located midplane and the patient is being treated on a 15 MV treatment unit.

What is the depth of maximum dose for a 10 MV beam?

What treatment(s) has the treatment time set in minutes? Select all that apply. 

Which of the following does not affect TMR?

1.      A patient is treated on the 6-MV treatment unit at an extended distance of 124 cm. The collimator setting is 18 x 18 cm and the field size on the patient’s skin is 22 x 22 cm. The prescription states that a dose of 4700 cGy is to be delivered to a depth of 7 cm in 10 fractions with a single posterior treatment field arrangement. Calculate the MU setting.

1.      A patient is being treated AP/PA to a total dose of 4500 cGy. If the fields are weighted 2:1.5, what is the total dose contribution from the anterior field?

Which of the following is NOT considered an emerging disease?

Which enzyme enables a retrovirus to convert its RNA genome into DNA?

What was a common feature of cities that developed due to the market revolution?