Technique Evaluation

Question 1

What is the techs role in xrays

Answer 1

Obtain radiographs
Evaluate for diagnostic quality
Corrections

Question 2

What is contrast good for

Answer 2

Tissue density differences
Good to evaluate multiple organs in adjacent areas

Question 3

What happens to contrast when you increase kvp

Answer 3

Decrease contrast

Question 5

How do you put a VD/DV x-ray on the light source

Answer 5

Head and spine up
Patients right on the viewers left

Question 6

How do you position a lateral x-ray on the light source

Answer 6

Head and spine up
Face on the viewers left

Question 7

What is the first question you ask when evaluating a radiograph

Answer 7

Is it too light or too dark

Question 8

What does it mean when an x-ray is too light

Answer 8

Underexposed
Need to increase mas or kvp

Question 9

What does it mean when an x-ray is too dark

Answer 9

Over exposed
Decrease mAs or kvp

Question 10

What is the second question you ask after figuring out if an x-ray is too light or too dark

Answer 10

Proper penetration
Can you visualize anatomic silhouettes

Question 11

What parameter do you need to change if you can evaluate silhouettes

Answer 11

Mas
If you can evaluate silhouettes that means you have good penetration

Question 12

What parameter do you need to change if you can’t evaluate silhouettes

Answer 12

KVP

Question 13

What scale of contrast should soft tissues be in

Answer 13

Low contrast with many shades of gray
Long scale

Question 14

What scale of contrast should bone be in

Answer 14

High contrast with few grays
Short scale (low kvp high mas)