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R100 MidTerm Review
RAD100
| Question | Answer |
|---|---|
| What does angling the central ray (CR) 25 degrees cephalic mean? | The CR is angled 25 degrees toward the patient's head. |
| Define: Caudal | Refers to a direction toward the feet or tail end of the body. |
| The two classifications of the human skeleton are the __________ and __________ skeletons. | axial; appendicular |
| What is the Trendelenburg position? | A body position where the patient lies on their back with the head lower than the feet. |
| Name the three main body planes. | Sagittal (half), coronal (frontal), and transverse (horizontal). |
| What are positioning landmarks used for in radiography? | To accurately align the patient and the X-ray beam to ensure that the desired internal structures are included in the radiograph. |
| What is a routine position for a PA hand X-ray? | SID: 40 in. No angulation. The patient places the hand palm-down flat on the image receptor with fingers extended. |
| How should kVp be adjusted for a patient with a fiberglass cast? | Increase the kVp by 3-4 to compensate for the density of the cast. |
| Explain the purpose of Automatic Exposure Control (AEC) and its role in patient safety. | The AEC terminates the exposure when sufficient radiation reaches the image receptor. |
| Discuss when and why Grids are used in radiography. | Grids are used when the anatomy is greater than or equal to 10cm to collect scatter. |
| Identify the Components of the X-ray System (e.g., X-ray tube, generator, image receptor). | X-Ray Tube- Produces x-ray. X-Ray Generator- Supplies and controls electrical power for the tube. Image Receptor- Captures the X-Ray. Collimator- Adjusts the X-Ray beam. Table and Bucky- Supports patients and holds IR. Grid- Collects scatter ti improve im |
| Differentiate between types of X-ray Tables and Support Systems. | Tables: Fixed, floating, tilting, adjustable, mobile. Systems: Ceiling, floor, mobile, C-arm. |
| Explain how to properly center the CR for Hand Imaging. | PA- 3rd MCP Joint. Oblique- 3rd MCP Joint. Lateral- 2nd MCP Joint. |
| Explain how to properly center the CR for Wrist Imaging. | PA- Mid-Carpal Oblique- Mid-Carpal Lateral- Wrist joint- above radial styloid |
| Define terms for Body Movements. | Supination- Face up, Pronation- Face down, Flexion- Decreasing the angle, Extension- Increasing the angle, Abduction- Move away, Adduction- Move toward body, Trendelenburg- Head is lower than feet, Circumdcution- Circular motion |
| Describe the Importance of Image Orientation (e.g., long axis of the part aligned with the image receptor). | Ensures entire anatomy is included. |
| Diagnostic Yield. | Amount of quality information provided from medical image. |
| Diagnostic Efficacy. | How effective an imaging procedure is in reaching an accurate medical diagnosis and guiding clinical decisions. |
| Major controls of control console. | kVp, mAs, timer, exposure switch, study selection, on/off |
| Concept of exposure controls. | kVp= Quality mAs= Quantity |
| Different types of receptors. | CR, DR, Video/Live, Film |
| Modalities | Fluoroscopy, CT, DEXA, Sonography, Nuc Med, Mammo, MRI, Oncology |
| Caudal vs Cephalic | Caudal= Towards bottom of body Cephalic= Towards upper of body |
| What exam suspend breathing? | AP Humerus, Lateral Humerus, Axial Clavical |
| What shoulder projection exposes the glenoid cavity? | Grashey |
Created by:
cathrvn
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