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RAD 115 Exam 1
Part 1
| Question | Answer |
|---|---|
| radiation protection measures | Minimize repeat imaging |
| radiation protection measures | Use Optimum technique factors |
| radiation protection measures | Collimation |
| Why is the exposure taken on suspended expiration? | To avoid the compression of organs by the diaphragm |
| AP Upright Abdomen X-Ray images include the? | Diaphragm |
| AP Supine Abdomen X-Ray images include the? | Pubic Symphysis |
| What X-Ray would we perform to see air/fluid levels? | AP Upright Abdomen |
| Abdominal Aortic Aneurysm (AAA) | Localized dilation of abdominal aorta |
| Ascites | Fluid accumulation in the peritoneal cavity |
| Bowel Obstruction | Blockage of bowel lumen |
| Ileus | Failure of bowel peristalsis |
| Emphysema | Chronic obstructive pulmonary disease that causes permanent abnormal enlargement of airspaces caused by the destruction of alveolar walls without significant fibrosis |
| Pleural Effusion | Abnormal accumulation of fluid in the pleural space |
| Aspiration | Lung damage caused by inhaling foreign materials into the airways, leading to chemical pneumonitis, pneumonia, or chronic airway inflammation |
| Pneumothorax | A collapsed lung caused by air leaking into the space between the lung and chest wall |
| Pneumoperitoneum | Prescence of air in the peritoneal cavity |
| Emphysema causes permanent, abnormal enlargement of airspaces _________ to the terminal bronchioles | Distal |
| What is the site where oxygen/carbon dioxide exchange occurs with blood? | Alveoli |
| What part of the throat collects air from the nose/mouth and passes it to the trachea? | Pharynx |
| What houses the vocal cords? | Larynx |
| Bronchi & Bronchioles are? | Branching airways that distribute air throughout the lungs |
| The trachea is _________ to the Larynx? | Inferior |
| What conditions require a decrease in technique? | • Old age • Pneumothorax • Emphysema • Emaciation |
| What conditions require a increase in technique? | • Pleural effusion • Enlarged heart • Edema • Prosthetics |
| Protocol Book | • Should cover every examination performed in the department • List of all department-approved projections and positions for each examination |
| Explain some ways to reduce motion during imaging | Giving clear instructions to the patient, make patient comfortable, and Adjust support devices and apply immobilization as needed |
| Explain some ways to reduce motion during imaging | Shorten exposure time, decrease time and increase mA to maintain the same mAs |
| technique chart | Provides optimal exposure factors (kVp, mA, time, mAs) based on anatomical area and patient thickness |
| Only shield when- | A patient with reasonable reproductive potential's gonads are located within 5 cm (2 inches) of the collimated beam |
| Only shield when- | The clinical objective is not compromised and the shield is not in the primary beam |
| Image ID requirements | 1. Date 2. Patient’s name or ID number 3. Right or left side marker 4. Institution |
| Brightness in film is controlled by? | mAs |
| Brightness in digital is controlled by? | 1. Automatic rescaling 2. Window level 3. Brightness of monitor |
| Contrast in film is controlled by? | kVp |
| Contrast in digital is controlled by? | 1. Bit depth 2. LookUp Table 3. Window Width |
| _______ is how an image is made visible | Manifest |
| Grids should be used when? | Part thickness is greater then 10 cm |
| Low spatial resolution may be caused by? | Short SID |
| _______ help prevent Compton Scattering from reaching the IR | Grids |
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