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Vet 246
Test 1
| Question | Answer |
|---|---|
| You are taking a VD thoracic radiograph of a boxer. The boxer's thorax measures 24 cm. Where will you place the cassette | Grid/Bucky tray |
| When positioning for a lateral thoracic radiograph, the patient's front limbs should be pulled | Cranial as far as possible |
| Which tissue is most susceptible to radiation | Rapidly dividing tissues |
| If your overall image is too light, what is most likely the culprit | mAs is too low |
| All of the following are good safety measures, except | Wear lead gloves only when your hands are going to be in the primary beam |
| The exposure switch has two stages. What does the first stage do | The first stage rotates the anode |
| You are taking a radiograph of a patient in right lateral recumbency. Which marker should you use | Right |
| What part of the x-ray unit produces electrons | Cathode |
| How often should personal protective equipment be radiographed to check for cracks and defects that could potentially expose staff to radiation | Every year |
| Which of the following are legally required to be included in the radiographic image | Patient name, Client name, Vet clinic name, Date |
| You are taking a radiograph of a canine thorax. You should collimate cranially to the | Shoulder joint or thoracic inlet |
| New, unused boxes of film should be stored | Upright in an area unaffected by radiation and heat |
| You are taking a radiograph of a canine thorax. You should collimate caudally to | A few centimeters caudal to the 13th rib |
| The 15% rule is primarily used | When the contrast on the image needs to be enhanced |
| Radiation workers should wear their personal dosimeter at all times and store it at home | False |
| How far should the x-ray tube be from the cassette | 40 in |
| How should leaded aprons be stored | Leaded aprons should be hung up to prevent folding and creasing |
| You are radiographing the abdomen of a deep-chested greyhound. The head and thorax should be closer to the | Cathode |
| Besides x-rays, what else can fog a film | Light and heat |
| Which of the following is not an essential component needed to create an x-ray beam | Collimater to prevent scatter radiation |
| The dosimeter can be worn anywhere just as long as it is on you during the exposure | False |
| You are taking a left lateral abdominal x-ray of a cat. The cat's abdomen measures 9cm. Where will you place your cassette | Tabletop |
| Filtration eliminates scatter radiation it hits the patient, whereas a grid eliminates scatter radiation it hits the patient | Before After |
| Angulating the patient between the x-ray tube and the cassette will cause what kind of problem | Distortion |
| What is the purpose of a dosimeter | Measures the dose of radiation received by healthcare workers over a period of time |
| General radiography uses emulsion film | Double |
| The cathode filament in the x-ray tube is a coiled . It is made of | Wire Tungsten |
| What component of the X-ray tube creates a vacuum environment | Glass envelope |
| How can you reduce magnification | Keep the patient's body as close as possible to the cassette |
| X-rays are produced when electrons are attracted to by an electromagnetic force | Negative A positive anode |
| What happens if the focal spot (target) overheats | Heat bloom |
| A radiation worker's personal dosimeter should in a location where it will not be exposed to radiation to a lot of light | True |
| You are taking a radiograph of a canine thorax. Where should you measure your patient | Caudal border of the scapula |
| During an exposure, the anode produces | 99 % heat 1% x-ray |
| Pneumonia is suspected. The recommended radiographic views are | Both laterals and ventrodorsal thoracic radiographs |
| Which of the following are components of a film-based image receptor | Cassette, Intensifying screen, Film |
| Which part of the x-ray unit produces x-rays | Anode |
| Energy (X-rays) can be represented as both | Waves and particles |
| The phosphor of intensifying screen coverts x-rays to | Light |
| Loaded cassettes should be stored in a horizontal, lying-down position | False |
| Blue-receiving film is physically . Green-receiving film is physically | Green Violet |
| Who discovered x-rays | Wilhelmina Roentgen in 1895 |
| Medical radiation involves | Disruption of the normal relationship of the nucleus and its electrons |
| In a mobile x-ray unit, the anode is | Stationary |
| Where are radio scopes used | In nuclear medicine studies |
| X-ray photons are absorbed by | The patient’s body |
| The ALARA Principle stands for what | As low as reasonably achievable |
| What is kilovoltage selected from | The autotransformer |
| Small animal thorax view | Lateral and VD/DV |
| Cardiac disease view | DV |
| Pneumonia and mestitis view | Both laterals VD for pneumonia VD and DV mestitis |
| Oblique | Reference to limb |
| Kilovoltage | Affects contrast and penetration |
| mAs contributes | Density and quantity |
| If kV is increased | There will be decreased contrast |
| Quantity of photons in the beam refers to | Intensity of the beam |
| Quality of the x-ray beam refers to | The penetration of the beam |
Created by:
Scoots223