Rad Posi

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Learning Exercise A: Preliminary Steps in Radiography


New and different important factors must be considered every time a radiograph is obtained. This exercise


provides a comprehensive review of those important areas. Items require you to fill in missing words, select


answers from a list, provide a short answer, or choose true or false (provide an explanation for any statement


you believe to be false).


Refer to Chapter 1 Frank, Merrill’s Atlas of Radiographic Positioning and Procedures 12th ed., 2012.


6. What is the minimum SID for chest


radiography?


1. Who is a radiographer?


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2. Explain ALARA.


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3. Define the following acronyms:


a. ARRT:


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b. ASRT:


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7. Before beginning a radiographic


examination, what should the radiographer


do to gain the cooperation of a coherent


patient?


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8. When the radiologist is unable to see the


patient, who is responsible for ensuring


that an adequate clinical history


accompanies the radiographs?


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9. What exposure factor is used to control


involuntary motion?


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4. How often should the radiographic table be


cleaned?


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5. What is the easiest and most convenient


method to prevent the spread of


microorganisms?


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10. Define image receptor (IR).


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11. List the four types of IRs used in diagnostic


radiology


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6. The minimum SID for chest radiography is typically 72 inches.

1. A radiographer is a healthcare professional trained to perform diagnostic imaging examinations, such as X-rays, CT scans, and MRIs.

2. ALARA stands for "As Low As Reasonably Achievable." It is a radiation safety principle aimed at minimizing radiation exposure to patients and healthcare workers.

3.
a. ARRT stands for American Registry of Radiologic Technologists.
b. ASRT stands for American Society of Radiologic Technologists.

7. To gain the cooperation of a coherent patient before a radiographic examination, the radiographer should introduce themselves, explain the procedure in simple terms, ensure the patient's comfort, and address any concerns the patient may have.

8. When the radiologist is unable to see the patient, it is the radiographer's responsibility to ensure that an adequate clinical history accompanies the radiographs to provide context for the interpretation.

9. The exposure factor used to control involuntary motion is a short exposure time or using immobilization devices when necessary.

4. The radiographic table should be cleaned before and after each patient use to maintain a clean and sterile environment.

5. The easiest and most convenient method to prevent the spread of microorganisms is proper hand hygiene, including washing hands with soap and water or using hand sanitizer regularly.

10. An image receptor (IR) is a device or medium that captures the X-ray image during radiographic examinations. It can be a film cassette, CR plate, DR detector, or other digital imaging technologies.

11. The four types of image receptors used in diagnostic radiology are film/screen cassettes, computed radiography (CR) plates, digital radiography (DR) detectors, and fluoroscopic image intensifiers.