Radiology Flashcards
Hanging lateral body cavity radiographs
Dorsal aspect to the top and head to the left
Hanging extremities radiographs
Proximal bones to the top and distal bones to the bottom
Hanging VD and DV body cavity radiographs
Cranial portion to the top, caudal on the bottom, patients right to our left
Developer
3 minutes at 68°
Increase or decrease time by 30 seconds for every degree above or below
But never less than 2 minutes
Fixing time
2 times the developing time
Clearing time
Minimum of 20 seconds
Rinsing time
Between developing and fixing – 30 seconds
Final rinse – approximately 10 minutes
Overexposed
Too dark
Underexposed
Too light
Doubly dark
Decrease kVp by 15% And mAs by 50%
Half Doubly dark
Decrease kVp by 10% and mAs by 30%
Quarter doubly dark
Decrease kVp by 2-3
Doubly Light
Increase kVp by 15% and mAs by 50%
Half doubly light
Increase kVp by 10% and mAs by 30%
Quarter doubly light
Increase kVp by 2-3
What is mAs?
Milliamperage x seconds
Be able to ID These structures on a radiograph
Heart, lungs, aorta, vena cava, trachea, esophagus, stomach, kidneys, spleen, bladder, joints, bones, large and small intestines
Caliper
Measures in cm. Always measure at the thickest point of the body that is to be radiograph
Abdomen site of measurement
The 13th rib
Thorax site of measurement
The 9th rib
Rear extremity Site of measurement
Distal femur
Front extremity site of measurement
Distal humerus
A thoracic radiographs should be taken on _____
Expiration
1/40 of a Second is _____ then 1/60 of a second
Slower
Air appears what color on a radiograph?
Black
Extremity radiographs should be taken how?
On table top
Air is radiolucent on a radiograph which means it will appear how Radiograph?
Black
Barium and bone are radiopaque on a radiograph which means that they will appear how a Radiograph?
White
kVp settings have an impact on _____
Radiographic contrast
mAs Is a measurement of _____
Total amount of x-rays produced
