23.  Several hours after a picnic to celebrate the end of microbiology class, some of the students began to experience nausea, vomiting and abdominal pain which lasted for about 24 hours.  A culture from the picnic food grows gram + aerobic endospore forming rods.  The most likely etiology of the food poisoning is:

38.  Immunity can be classified according to lines of defense (FLOD, SLOD, TLOD).  Name 1 component ONLY for each line of defense.

11. Which of the following is mis-matched?

29.  A patient presents with symptoms consistent with gummas on many organs, skin, bone, neurosyphylis and cardiovascular aortic aneurism.  These symptoms and signs are consistent with:

Which of the following is the standard beam arrangement for VMAT brain planning at OSU? 

Which of the following statements are TRUE regarding the use of hand blocks?  Hand blocks are pre-made with a diverging cut that matches field divergence Hand blocks are pre-made non-divergently cut Hand blocks generate less penumbra than custom blocks Hand blocks generate more penumbra than custom blocks 

During Inverse planning, which of the following parameters are NOT set by the dosimetrist?   Field Gantry Angle  Field Apertures and MLC Blocking   Field Energy  Field Weighting  

From an AP beam in an IMRT Prostate plan, which intensity pattern would you expect to see to spare the rectum? (Fig. 1) 

How is the field size defined geometrically? 

Which electron cutout is likely to have the biggest loss of lateral scatter equilibrium and most significant high-isodose constriction?