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Details

Rad Bio - Dose Limits, Units of Measuremen, Patient Dose
Radiation Biography for the Senior Level Radiographer
14
Health Care
Undergraduate 2
04/17/2013

Additional Health Care Flashcards

 


 

Cards

Term
What are the six steps to Holistic Care
Definition

Collimate

shield

Low mAs High Kvp Possible

avoid repeats

ellimninate unessesarry exams

PA vs Ap Positioning

Term
Name all the beam limiting devices
Definition

Aperture diaphragms

cones

cylinders

collimators

Term

Where is the Aperture diaphragm positioned on tube

 

Definition
under xray tube window
Term
Which type requires 1 restrictor for each field size and SID
Definition

Aperture Diaphragm

 

Term
Where is the cone placed
Definition
Level of the collimator
Term
What is the first set of collimators used for
Definition
Off focus Radiation
Term
What is the second set of collimators used for
Definition
Field Restriction
Term
What is the purpose of filtration
Definition
Absorb Low energy photons that do not contribute to image quality
Term
How much does inherent filtration amount to
Definition
.5 mm AL eq.
Term
What is the standard for total filtration in xray
Definition
2.5 mm Al eq
Term
what is is called when thickness of an absorber required to decrease the intensity of the bean by 50 percent of its original value
Definition
Half-value layer
Term
How much does 1 mm of lead reduce dose to gonads - Females and Males
Definition
50-95 percent respectively because of anatomic location
Term
When MUST a shield be placed over the gonads
Definition
whenever the beam is within 5cm of the gonads
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