Rad Protection Patient Protection Test Questions with Answers
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Rad Protection Patient Protection
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Rad Protection Patient Protection
Rad Protection Patient Protection Test Questions with Answers
The image intensifier acts as a primary barrier and is required to be equivalent to what amount of lead? - Answer-2mm of lead equivalent.
What is the required minimal source-to-end of collimator assembly distance necessary for mobil...
Rad Protection Patient Protection
Test Questions with Answers
The image intensifier acts as a primary barrier and is required to be equivalent to what
amount of lead? - Answer-2mm of lead equivalent.
What is the required minimal source-to-end of collimator assembly distance necessary
for mobile fluoroscopy? - Answer-12 inches.
List two types of compensating filters. - Answer-Wedge and trough filters.
What is the purpose of the spacer cone or collimator extension attached to the
collimator assemble of a mobile c-arm? - Answer-To prevent the patient from being any
closer than 12" to the tube target.
How many inches should the source-to-tabletop distance be for fixed fluoroscopy units?
- Answer-15 inches.
What is the current federal limit for entrance skin exposure (ESE) rates of image-
intensified fluoroscopy units? - Answer-10 R/minute measured at the tabletop.
Which type of exposure switch (foot pedal) must be used in fluoroscopy? - Answer-
Dead-man.
What is high-level-control (HLC) fluoroscopy? - Answer-It is an operating mode for
fluoroscopic equipment in which exposure rates are higher than those used in normal
fluoroscopy.
What is the minimal source-to-tabletop distance for mobile fluoroscopes? - Answer-12
inches.
When is HLC fluoroscopy used? - Answer-During interventional procedures such as
heart catheterizations.
What are the advantages of HLC fluoroscopy? - Answer-Higher exposure rates allow for
visualization of smaller and lower contrast objects not usually imaged.
Which field of a multifield image intensifier tube results in increased patient dose? -
Answer-The smallest or the magnified field.
Define entrance skin exposure (ESE). - Answer-Most common way to approximate x-
ray exposure to the skin; measured in mR.
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