What total dose is usually given to a prostate patient with no nodal involvement during an external beam course?
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Which class of chemotherapy drugs are cell cycle specific?
Which class of chemotherapy drugs are cell cycle specific?
To treat an extended distance femur with an AP/PA beam arran…
To treat an extended distance femur with an AP/PA beam arrangement, what is true? Select all that apply:
TAR divided by BSF is _____.
TAR divided by BSF is _____.
An entire spine is treated by matching two fields both treat…
An entire spine is treated by matching two fields both treated at 100 cm SSD. Field #1 measures 8W x 20L and field #2 measures 8W x 25L. To match these fields at a depth of 5 cm, what gap would be needed on the skin surface?
When treating a left lateral field, the gantry and collimato…
When treating a left lateral field, the gantry and collimator angles are respectively 90o and 25o. If an opposed portal is planned with a gantry angle of 270o, then the collimator angle should be:
A block should allow less than what percentage of the beam e…
A block should allow less than what percentage of the beam energy to pass through?
A patient is supposed to receive a dose of 200 cGy with a TM…
A patient is supposed to receive a dose of 200 cGy with a TMR of .872, output of 1 cGy/MU, and a wedge factor of .751 making the Monitor Units total 305. How much dose would this patient receive if the wedge was not used in the field and the same number of monitor units was given?
EPIDs integrated in Linear accelerators are a type of:
EPIDs integrated in Linear accelerators are a type of:
Which is an advantage of a non-coplanar treatment
Which is an advantage of a non-coplanar treatment