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Mid term Rad100
Basics
| Question | Answer |
|---|---|
| What is Central Ray Angulation? | The adjustment of the central x-ray tube relative to the anatomy being imaged in horizontal and vertical planes. |
| Define Caudal vs Cephalic | Caudal is toward the TAIL (inferior) Cephalic is toward the HEAD (superior) |
| Define Proximal vs Distal | Proximal is closer to site of attachment Distal is farther from the site of attachment |
| Define Ventral vs Dorsal | Ventral is the FRONT (anterior) of the body Dorsal is the BACK (posterior) of the body |
| What does the axial skeleton consists of? | Skull, vertebral column, and rib cage |
| What does the appendicular skeleton consists of? | Limbs and Girdles |
| What are the human skeleton classifications? | Axial skeleton Appendicular skeleton |
| Define Synovial (diarthrodial) Joints | A type of joint that allows free movement in multiple planes |
| What kind of Synovial (diarthrodial) Joints are there? | Ginglymus (Hinge) - flexion & extension Ellipsoidal (4 directions) - flexion, extension, abduction, & adduction Circumduction (conelike) - moves in a circle without rotation Saddle (seat) - all above ranges of motion Plane (glide) - LEAST movement |
| Define Grids | A device that is placed between a patient and IR, & absorbs scattered radiation from reaching the Image Receptor (IR) to enhance image contrast (kVp). Required imaging body parts greater than 10 cm. |
| Define Automatic Exposure Control | A feature in x-ray machines that automatically adjusts the radiation exposure based on patient’s anatomy & thickness. PREVENTS OVER EXPOSURE |
| Define mAs (Milliampere / Seconds) | Controls the amount (quantity) of radiation produced by the x-ray tube. DENSITY/EXPOSURE |
| Define kVp (Kilovoltage) | Controls penetrating ability of the x-ray beam Load & makes up the image CONTRAST/POWER |
| What are the stages of radiation interactions in medical imaging? HINT P.A.R.S | 1. Primary Rad- Beam of photons exits the x-ray tube 2. Absorbed/Attenuation Rad- Photons alter depending on body tissues 3. Remnant Rad - Photons exits body & enters IR to produce images 4. Scatter Rad- Photons travel in diff direction (USELESS) |
| What routine exams requires suspended breathing? | 1. AP Humerus 2. Lateral Humerus 3. Axial Clavicle |
| What view shows the glenoid cavity? | The Grashey View |
Created by:
Aaliyah602
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