Radiology Questions
Explore questions in the Radiology category that you can ask Spark.E!
How long can the latent image remain "stored" in the phosphor layer of a photostimulable phosphor plate?A. 1 hourB. 6 hoursC. 12 hoursD. 24 hours
Which of the following positions/projections are superior in terms of radiation protection?1. PA rather than AP c-spine examinations2. PA rather than AP for juvenile scoliosis examinations3. PA rather than AP skull examinationsA. 1 onlyB. 1 & 3 onlyC. 2 & 3 onlyD. 1, 2 & 3
While positioning a patient for a PA chest he tells you he has had his left lung removed. Which photocell(s) would you activate on the AEC?A. Both outside cellsB. The center cellC. The right cellD. The right and center cell
Which of the following terms describes the intensity of the x-ray beam?A. QualityB. QuantityC. PrimaryD. Remnant (exit)
Which of the following parts of an image intensification tube converts the x-ray image into a visible image?A. PhotocathodeB. Input phosphorC. Output phosphorD. Electrostatic lens
Which of the following factors will affect the quantity as well as the quality of the x-ray beam?1. kVp2. HVL3. SID4. All of the above
Which of the following will NOT reduce the amount of exposure to the patient?A. Higher grid ratioB. Proper collimationC. Beam filtrationD. Use of intensifying screens
Which of the following are features of fluoroscopic equipment designed to reduce unnecessary radiation to the patient?1. Collimation2. Cumulative timer3. Deadman switch4. All of the above
Which of the following are disadvantages of using a flat piece of lead for gonadal shielding?1. Cannot be used for erect views2. Difficult to keep in place3. Is not very useful for fluoroscopy4. All of the above
The quality of an x-ray beam can be measured by which of the following methods?A. Rate meterB. SensitometryC. Half-value layer (HVL)D. Spinning top
Which of the following are things a radiographer should do in order to avoid unnecessary patient exposure?1. Avoid retaking radiographs2. Use high speed screens3. Keep equipment in good working order4. All of the above
Which of the following filters would produce an x-ray beam with the highest average photon energy?A. 1 mm AlB. 2 mm AlC. 3 mm AlD. 4 mm Al
Patient dose during fluoroscopy can be minimized by which of the following?1. Decrease tube to tower distance2. Restrict beam size3. Increase fluoroscopic milliamperage4. All of the above
What is the effective dose limit for a non-radiation worker?A. 2.5 mSv (.25 rem)/yearB. 5.0 mSv (.5 rem)/yearC. 12 mSv (1.2 rem)/yearD. 25 mSv (2.5 rem)/year
Which of the following radiographic techniques will provide the least amount of exposure to the patient?A. 400 mAs, 60 kVpB. 200 mAs, 70 kVpC. 100 mAs, 80 kVpD. 50 mAs, 92 kVp
Which of the following are recommended to prevent radiation exposure to patients in early pregnancy?1. Ask patient the date of her last menstrual period2. Posters stating "tell the radiographer if you are pregnant"3. Ask patient if there is any chance she could be pregnant4. All of the above
When should gonadal shielding be used on a patient?1. If the patient is of a reproductive age or younger2. If the shield will not interfere with the exam3. If the gonads lie in or near the primary beam4. All of the above
What is the primary purpose of beam filtration?A. Improve radiographic contrastB. Protect patient from low energy x raysC. Produce uniform densities in the imageD. Increase visibility of detail
The function of a beam filter is to remove which of the following from the x-ray beam?A. Secondary radiationB. Scatter radiationC. Low energy radiationD. High energy radiation
Which of the following will NOT have an effect on patient dose?A. FiltrationB. SIDC. Focal spot sizeD. kVp