Radtech Simulation Examination 9

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1/100 Questions

If a subject says there might be a possibility they could be pregnant but is not 100% sure, they can be scanned.
- True
- False

About This Quiz

This is your Radtech Simulation 9 for HAAD and other Gulf Exams.
The questions here are encountered last month based on feed backs from Gulf Countries.
You would be given 120 minutes to answer 100 items.
Passing Score would be 70 %
This is a LIMITED TAKEN TEST so You need a STRONG INTERNET CONNECTION to take this properly.
Correct Answers will be displayed after the test, so Don't Exit Immediately.
For more information please consult with our webmaster.

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2.

The "p" in kVp stands for
- Percentage
- Parallel
- Punitive
- Peak
- Paired
Correct Answer

A. Peak

Explanation

p is the peak of the kilovoltage as it represents the peak energy of the beam. In a 70kVp beam only some of the photons have the energy representative of 70 kV while the rest of the photons have a lower energy ranges. That is why the beam is called "polychromatic beam"

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3.

If a volunteer states she could be pregnant you should:
- Let her know there is no known effects to the fetus and continue the exam
- Ignore the information it doesn't matter if she is pregnant or not
- Tell her to come back when her first trimester is over
- Cancel the exam until she can be sure she is not pregnant
Correct Answer

A. Cancel the exam until she can be sure she is not pregnant

Explanation

Unless your research patient can say for certain they are not pregnant they cannot go into the scanner until they know for sure that they are not pregnant. If a research subject is pregnant the exam must be canceled regardless of trimester.

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4.

Radiographs should always be viewed
- In a well lit room
- On a viewbox
- In the operatory
- By holding them up to a celling light
- Using hight from a window
Correct Answer

A. On a viewbox

Explanation

Radiographs should always be viewed on a viewbox because it provides the ideal lighting conditions for accurate interpretation. A well-lit room ensures that the radiographs are clear and all details are visible. The viewbox is specifically designed for viewing radiographs, providing a consistent and standardized lighting source. This allows the dentist or radiologist to accurately diagnose any dental or medical conditions present in the radiographs. Holding them up to a ceiling light or using light from a window may result in uneven lighting, shadows, or distortion, making it difficult to interpret the radiographs correctly.

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5.

The device that converts x ray energy into visible light is called a(n)
- Cassette holder
- Step down transformer
- Intensitying screen
- Nonscreen film
- Screen film
Correct Answer

A. Intensitying screen

Explanation

An intensifying screen is a device that converts X-ray energy into visible light. When X-rays pass through the patient's body and hit the intensifying screen, the screen emits visible light. This visible light then exposes the film, capturing the X-ray image. Intensifying screens are commonly used in X-ray imaging to reduce the amount of radiation needed to produce a diagnostic image, thus minimizing the patient's exposure to radiation.

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6.

The radiograph shown here is frequently used in Orthodontics for study of the growth and development of the head. Name the radiograph
- PA skull
- AP skull
- Submento vertex view
- Lateral Cephalometric view
- Panoramic view
Correct Answer

A. Lateral Cephalometric view

Explanation

The correct answer is Lateral Cephalometric view. This radiograph is commonly used in Orthodontics to study the growth and development of the head. It provides a side view of the skull, including the bones of the face and jaw, as well as the teeth and their relationship to the rest of the head. This view allows orthodontists to assess the position and alignment of the teeth, evaluate the growth of the jaws, and plan orthodontic treatment accordingly.

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7.

Before beginning to scan a subject, you should:
- Clear the patient of all internal and external metals
- Give the subject earplugs and the emergency squeeze ball
- Check lines of remote verbal communication with the subject (from the workstation)
- All of the answers are true
Correct Answer

A. All of the answers are true

Explanation

You must check each subject for contra-indications they might have before allowing them into the scan room. Once the patient is on the table it is very important you get them as comfortable as possible. The MR scanner can produce very high acoustic noise levels that can cause discomfort. Before you start your protocol make sure you open the lines of communication so the patient knows you can hear them in case of an emergency.

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8.

The ALARA principles refers to
- Obtaining informed consent
- The disinfection procedures recommended in dental radiography
- Obtaining diagnostically acceptable radiographs with minimal exposure to radiation
- Decreasing the processing time for exposed radiographs
- None of above
Correct Answer

A. Obtaining diagnostically acceptable radiographs with minimal exposure to radiation

Explanation

The ALARA principles refer to obtaining diagnostically acceptable radiographs with minimal exposure to radiation. This means that the goal is to obtain high-quality radiographs that provide the necessary diagnostic information while keeping the radiation exposure to the patient as low as reasonably achievable. This principle emphasizes the importance of using proper techniques, equipment, and shielding to minimize radiation exposure during dental radiography.

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9.

The radiograph shown here is a
- Panoramic radiograph
- Occlusal radiograph
- Lateral oblique radiograph
- P-A view of the skull
- A-P view of the skull
Correct Answer

A. Panoramic radiograph

Explanation

The correct answer is panoramic radiograph because the image shown is a wide-angle view of the entire dental arch, including both upper and lower jaws. This type of radiograph is commonly used in dentistry to assess the overall condition of the teeth, jawbones, and surrounding structures. It provides a comprehensive view of the oral and maxillofacial region, allowing for the detection of various dental and skeletal abnormalities.

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10.

A research volunteer tells you they have been scanned many times for clinical reasons so there is no reason to re-evaluate this subject and they are cleared to enter the scanning room.
- True
- False
Correct Answer

A. False

Explanation

Implants and objects that are cleared for a 1.5T machine does not mean they are cleared for a 3T machine since it is twice the strength. Also some radiological exams resemble the MRI scanner, for example many times patients confuse MRI with CT.

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11.

Intraoral film packets must be
- Resistant to salivary seepage
- Flexible
- Light tihgt
- Easy to open in the darkroom
- All of the above
Correct Answer

A. All of the above

Explanation

The correct answer is "all of the above". Intraoral film packets must be resistant to salivary seepage to prevent contamination and maintain image quality. They should also be flexible to adapt to the patient's mouth and ensure comfort during the procedure. Being light tight is crucial to protect the film from exposure to light, which can result in inaccurate images. Lastly, they should be easy to open in the darkroom to facilitate efficient processing and minimize handling errors.

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12.

Which of the following is a likely consequence of forgetting to remove your wallet from your pocket before entering the scan room:
- There will likely be no adverse consequence
- The magnetic stripes on your credit cards and ATM cards are erased
- The wallet will heat up and may cause burns
- Because the ink on US currency is ferromagnetic, your wallet may become a projectile and fly into the magnet bore
Correct Answer

A. The magnetic stripes on your credit cards and ATM cards are erased

Explanation

The magnetic field can seriously damage or impair the following personal items:
Cameras, watches, credit and bank cards, hearing aids, hair accessories, belt buckles, shoes and I-pods just to name a few. Please remember to empty ALL of your pockets before entering the scanning room.

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13.

If your patient complains of a body ache, dizziness or anxiety (including claustrophobia) during the middle of the scan, you should:
- Quench the magnet
- Press the Emergency Shut Down Button
- Talk to your patient and remove them from the magnet if they cannot go on
- Ignore their complaints
Correct Answer

A. Talk to your patient and remove them from the magnet if they cannot go on

Explanation

Routine communication between you and your subject is very important so they know you can hear them if an emergency should arise. The emergency stop button and quench button should only be pressed is a life threatening emergency.

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14.

If you are not sure the ferromagnetic qualities of an object you should:
- Enter the scanning room slowly until you feel the object start to pull from your grasp
- Check it with a hand held magnet
- Bring the object into the room, if it is attracted to the magnet, turn off the scanner and pull it off the machine
- Nothing from the outside can go into the scanning room
Correct Answer

A. Check it with a hand held magnet

Explanation

The SCAN center has a .7T hand held magnet you can use to check the magnetic susceptibility of an object. If you still have questions please ask the MRI technologist to assist you. The SCAN Center staff has final say on what may or may not be brought into the scanning environment.

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15.

A subject checks the box that they have tattoos, the next step is to:
- Cancel the study, tattoos are never allowed in the scanner
- Wrap the tattoo in a cold compress and continue with the study
- Nothing, tattoos are fine
- Explain that in rare cases tattoos can tingle or burn and let them know if they are not comfortable in continuing they can back out of the study
Correct Answer

A. Explain that in rare cases tattoos can tingle or burn and let them know if they are not comfortable in continuing they can back out of the study

Explanation

Since there have been documented cases of tattoos burning the skin you must let them know there is a small chance of this. At that time they can back out of the study if they want. If they do feel a strange sensation during the scan have them squeeze the emergency ball as soon as possible and apply a cold compress to the area. The study is complete at this time.

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16.

Intraoral film packets must be
- Resistant to salivary seepage
- Flexible
- Light tight
- Easy to open in the darkroom
- All of the above
Correct Answer

A. All of the above

Explanation

The correct answer is "all of the above" because intraoral film packets must possess multiple qualities. They need to be resistant to salivary seepage to prevent any contamination. They should also be flexible to ensure comfort for the patient during the imaging process. Being light tight is crucial to prevent any light exposure that could affect the quality of the image. Lastly, they should be easy to open in the darkroom to facilitate the processing of the film. Therefore, all of these qualities are necessary for intraoral film packets.

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17.

To what does the term film speed refer?
- The developing time needed
- Sensitivity to x radiation
- Half life
- Degree of blackness on the exposed radiograph
- Shelf life
Correct Answer

A. Sensitivity to x radiation

Explanation

Film speed refers to the sensitivity of the film to x radiation. A higher film speed indicates a greater sensitivity to x radiation, allowing for shorter exposure times. This is important in radiography as it helps to achieve clear and accurate images while minimizing patient exposure to radiation.

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18.

The cathode and anode are parts of an x-ray tube. The anode is negatively charged.
- The first statement is correct. The second statement is wrong
- The first statement is wrong. The second statement is correct
- Both the statements are correct
- Both the statements are wrong
Correct Answer

A. The first statement is correct. The second statement is wrong

Explanation

The cathode and anode are indeed parts of an x-ray tube. The cathode is negatively charged, while the anode is positively charged. Therefore, the first statement is correct. However, the second statement is wrong as the anode is positively charged, not negatively charged.

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19.

Which form of radiation can cause ionization of atoms?
- Radar
- Microwaves
- Radio waves
- Visible light
- Gamma rays
Correct Answer

A. Gamma rays

Explanation

Gamma rays are a form of high-energy electromagnetic radiation. They have the shortest wavelengths and highest frequencies among all forms of electromagnetic radiation. Due to their high energy, gamma rays have the ability to ionize atoms, meaning they can remove electrons from atoms, resulting in the formation of charged particles. This ionization process can have various biological and health effects, making gamma rays potentially dangerous.

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20.

Syringe shields don't have to be labeled as long as there is a label on the syringe itself.
- True
- False
Correct Answer

A. False

Explanation

Syringe shields must be labeled if the label is not visible through the syringe shield.

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21.

If there is ever a Quench in the scan room instead of the outside environment, you must remove the patient and all staff from the room immediately. What is the safety concerns?
- Asphyxiation and frost bite
- Explosion
- Convulsion
- Fire
Correct Answer

A. Asphyxiation and frost bite

Explanation

If a quench occurs, everyone must be removed from the room immediately. The vapors and gases are very cold and can cause frostbite. They also often condense the moisture in air, creating a highly visible fog that can replace oxygen in the room.

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22.

What is the unit for measurement of magnetic field strength?
- Gauss
- Tesla
- Both Gauss and Tesla
- None of the above
Correct Answer

A. Both Gauss and Tesla

Explanation

Magnetic fields are measured in units of Gauss or Tesla (1T = 10,000G).

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23.

Who needs to be cleared before they enter the MRI scanning room?
- The Research Subject
- The Researcher/Research Assistant
- Public Safety Officials (Police/Firemen/EMT)
- The MRI Technologist
- All of the above
- None of the above
Correct Answer

A. All of the above

Explanation

Because the scanner's magnetic field is always on anyone who steps into the scanning room must be cleared by the SCAN Center's staff. Clearance forms can be found on our web site http://www.psychology.sunysb.edu/scancenter/. Anyone who has not been cleared should stay out of the controlled access areas marked by warning signs.

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24.

Which of the following materials is most resistant to x radiation?
- Copper
- Molybdenum
- Tungsten
- Lead
- Aluminum
Correct Answer

A. Lead

Explanation

Lead is the most resistant material to X radiation due to its high atomic number and density. X radiation consists of high-energy photons, and lead's high atomic number allows it to effectively absorb and scatter these photons, reducing their penetration through the material. Additionally, lead's high density further enhances its ability to attenuate X radiation, making it an ideal choice for shielding against this type of radiation. Copper, molybdenum, tungsten, and aluminum have lower atomic numbers and densities compared to lead, making them less resistant to X radiation.

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25.

The advantage of a film that has emulsion on both sides is that
- The film requires less radiation exposure
- The image produced is less distorted
- The film has less sensitivity to radiation
- Processing solutions work better
- The film is easier to mount
Correct Answer

A. The film requires less radiation exposure

Explanation

The advantage of a film that has emulsion on both sides is that it requires less radiation exposure. This means that a lower amount of radiation is needed to produce a clear and accurate image on the film. This can be beneficial in situations where minimizing radiation exposure is important, such as in medical imaging procedures.

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26.

Which of the following statements cocerning background radiation is most accurate?
- It gives us the maximum recommended dosage for radiation exposure
- It can be avoided if an individual is cautious
- It is found everywhere
- It is only present in dental offices and medical facilities
- None of the above are correct
Correct Answer

A. It is found everywhere

Explanation

Background radiation refers to the constant low-level radiation that exists in the environment from natural and man-made sources. It is present everywhere, including in the air we breathe, the food we eat, and the materials around us. It cannot be completely avoided, as it is a natural part of our surroundings. This statement accurately reflects the nature of background radiation.

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27.

The major risk of injury or harm due to a magnet quench is:
- The boiling off of cryogens that creates an asphyxiating steam
- The magnet becomes so warm that it may cause burns to patients in the bore
- There is no danger with a quench. It is how we shut down the machine for repair
- A blinding flash of light
Correct Answer

A. The boiling off of cryogens that creates an asphyxiating steam

Explanation

If a quench occurs, everyone must be removed from the room immediately. The vapors and gases are very cold and can cause frost-bite. They also often condense the moisture in air, creating a highly visible fog that can replace oxygen in the room.

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28.

In the event your subject is in some type of medical distress, what is the first thing you should do?
- Call 911 and wait for personnel to arrive
- Bring the crash cart into the scan room
- Nothing
- Call 911, remove the patient from the scanning room immediately
Correct Answer

A. Call 911, remove the patient from the scanning room immediately

Explanation

Should a condition exist where the patient is having a medical emergency, every effort should be made to remove the patient from the scan room. Once the patient is removed from the MR scan room, close the door to prevent re-entry. If you cannot remove the patient remember the magnet is always on. Under no circumstances should anyone be allowed to enter the scan room without proper screening!

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29.

Film fog occurs when all or part of a radiograph is darkened by
- An imbalance or exhaustion of processing solutions
- A light leak
- Improper safelighting
- Improper safelilghting
- All of the above are potential sources
Correct Answer

A. All of the above are potential sources

Explanation

The film fog can occur when any of the mentioned potential sources are present. An imbalance or exhaustion of processing solutions can cause the film to darken. A light leak can also contribute to the film fog, as it allows unwanted light to enter the film. Additionally, improper safelighting, which refers to the type and intensity of light used in the darkroom, can also lead to film fog. Therefore, all of the above options are potential sources of film fog.

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30.

The advantage of a film that has emulsion on both sides is that
- The film requires less radiation exposure
- The image produced is less distorted
- The film has less sensitivity to radiation
- Processing solutions work better
- The film is easier to mount
Correct Answer

A. The film requires less radiation exposure

Explanation

A film that has emulsion on both sides requires less radiation exposure because the emulsion on both sides allows for more efficient capture of radiation. This means that the film can produce a clear and accurate image with a lower amount of radiation exposure compared to a film with emulsion on only one side.

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31.

The sharpness of the image is determined to a large extent by the
- Shape of the object
- The focal spot size
- The make of the x-ray machine
- The distance between the anode and cathode
- None of the above
Correct Answer

A. The focal spot size

Explanation

The sharpness of an image in X-ray imaging is determined to a large extent by the focal spot size. The focal spot size refers to the size of the area on the anode where the electrons strike to produce X-rays. A smaller focal spot size allows for better spatial resolution and sharper images, as it reduces the blurring effect caused by the size of the focal spot. Therefore, the focal spot size plays a crucial role in determining the sharpness of the image.

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32.

Caution Radioactive Materials posting required where licensed material is used, stored or likely airborne.
- True
- False
Correct Answer

A. True

Explanation

The statement suggests that posting caution signs for radioactive materials is required in places where licensed material is used, stored, or where there is a likelihood of it being airborne. This implies that it is necessary to inform and warn individuals about the presence of radioactive materials in order to ensure their safety. Therefore, the correct answer is "True."

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33.

Every subject can choose if they would like to wear ear plugs, head set, both or nothing during the scan. It's up to each individual.
- True
- False
Correct Answer

A. False

Explanation

The MRI scanner produces very high acoustic noise, which can reach excess of 130 DbA. Everyone who is scanned must wear both ear plugs and headset during the exam.

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34.

Under the new metric system for measuring dose SI the rem replaced by the
- Rad
- Gray
- Sievert
- Becquerel
- Curie
Correct Answer

A. Sievert

Explanation

The given question is incomplete and not readable. It is not clear what the new metric system is for measuring dose SI, and what is being replaced by the sievert. Therefore, an explanation cannot be generated.

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35.

If the operating computer shut down and unplugged, the magnetic field is off and any materials, regardless for their ferromagnetic qualities can be brought into the scanning room.
- True
- False
Correct Answer

A. False

Explanation

The magnet is always on 24hrs/7days unless a quench has been initiated.

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36.

70 kilovolts equals
- 70,000 volts
- 700,000 volts
- 70,000,000 volts
- 7,000 volts
- 700 volts
Correct Answer

A. 70,000 volts

Explanation

1 kV = 1000 volts, hence 70 kV equals 70,000 volts

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37.

If the intensitying screens are not in perfect contact with the film which of the following will occur?
- The screen may be damaged
- The film may be damaged
- There will be a light leak
- There will be a loss of image sharpness
- A thin film will result
Correct Answer

A. There will be a loss of image sharpness

Explanation

If the intensifying screens are not in perfect contact with the film, there will be a loss of image sharpness. This is because the screens are designed to enhance the exposure of the film by emitting light when exposed to X-rays. When they are not in perfect contact, the light emitted by the screens may not reach the film evenly, resulting in a loss of sharpness in the final image.

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38.

Which of the following travel at the greatest speed?
- X ray
- Gamma rays
- Light
- Microwaves
- They all travel at the same speed
Correct Answer

A. They all travel at the same speed

Explanation

The correct answer is that they all travel at the same speed. This is because all electromagnetic waves, including X-rays, gamma rays, light, and microwaves, travel at the speed of light in a vacuum, which is approximately 3 x 10^8 meters per second. Regardless of their frequency or wavelength, electromagnetic waves propagate through space at the same velocity.

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39.

Identify the intraoral radiograph shown
- Periapical radiograph
- Bitewing radiograph
- Maxillary midline occlusal radiograph
- Mandibular floor of the mouth occlusal
- Lateral cephalometric radiograph
Correct Answer

A. Mandibular floor of the mouth occlusal

Explanation

The correct answer is mandibular floor of the mouth occlusal. This type of radiograph is taken by placing the film or sensor on the floor of the mouth and positioning the X-ray beam perpendicular to the film/sensor. It is used to assess the mandibular arch, including the teeth, alveolar bone, and surrounding structures. This radiograph provides a comprehensive view of the mandibular arch and is useful for detecting conditions such as impacted teeth, cysts, and tumors in the mandible.

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40.

The best way to clean the intensifying screens in extraoral cassettes is with
- Detergent
- Disinfectant solution
- Cold sterillizing solution
- Soapy water
- A wire brush
Correct Answer

A. Soapy water

Explanation

Soapy water is the best way to clean the intensifying screens in extraoral cassettes because it effectively removes dirt, stains, and debris without causing damage to the screens. It is a gentle yet effective cleaning solution that can be easily rinsed off, leaving the screens clean and ready for use. Using detergent or disinfectant solutions may be too harsh and could potentially damage the screens, while cold sterilizing solution may not effectively remove all the dirt and stains. A wire brush is not recommended as it can scratch and damage the screens.

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41.

If an object is considered safe to be used in a 1.5Tesla MR scanner, but has not been tested in a 3Tesla scanner, it should be labeled as:
- MR Safe
- Not sure, more research should be done
- MR Not Safe
- Does it matter?
Correct Answer

A. Not sure, more research should be done

Explanation

A 3T magnet is double the strength of a 1.5T unit. It is important to remember that objects that are clear for a 1.5T magnet cannot go into a 3T magnet. Mrisafety.com has the largest database of items that are cleared for the 3T environment.

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42.

The magnetic field is contained entirely in the center of the bore, it does not extend to the outside environment
- True
- False
Correct Answer

A. False

Explanation

All magnets have a fringe field that extends from the center of the magnet. Rooms are shielded as much as possible to contain this field but only people who have been cleared by the SCAN Center should be allowed in the controlled access areas of the center.

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43.

Patients with which of the following prosthetic devices may be safely scanned:
- Cardiac pacemaker
- History of having metal flakes in the eye
- Cochlear implant (inner ear prosthetic device)
- Total knee replacement
Correct Answer

A. Total knee replacement

Explanation

The following items can NEVER be allowed into the scanning room:
cardiac pacemakers, cochlear (inner ear) implants, ferromagnetic or unidentifiable aneurysm clips of the brain, implanted neuro stimulators, metal or unidentifiable foreign bodies in the eyes, and implanted pumps to deliver medicine that cannot be removed.
If a subject works around metal and cannot say for sure they have never had any metal in their eyes the study should be canceled.

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44.

Which of the following objects are potential projectiles?
- Watch
- ID badge
- Pencil
- Clipboard
Correct Answer

A. Clipboard

Explanation

Some examples of items that can become projectiles are: Scissors, hair clips and bobby pins, tools, paperclips and clapboards.

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45.

What is a Quench?
- Total power down of the computer system
- A ramping up of the magnetic field in which all of the cryogens are put into the bore thus making the scanner super conductive
- How the staff shuts the magnet down after hours, to ensure maximum safety
- A rapid boil off of cryogens and ultimate loss of a magnetic field
Correct Answer

A. A rapid boil off of cryogens and ultimate loss of a magnetic field

Explanation

MR scanners are super cooled with inert gases such as helium. A quench is the rapid boiling off of these cryogens intentionally or unintentionally.

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46.

Which of the following types of scatter radiation occurs most often with dental x rays
- Thompson
- Compton
- Photoelectric
- Coherent
- All of the above occur equally with dental x rays
Correct Answer

A. Compton

Explanation

Compton scattering is the most common type of scatter radiation that occurs with dental X-rays. In Compton scattering, the X-ray photon interacts with an outer shell electron, causing the photon to lose energy and change direction. This type of scatter radiation is more likely to occur in dental X-rays because the energy of the X-ray photons used in dental imaging is relatively low. Thompson scattering, photoelectric effect, and coherent scattering can also occur with dental X-rays, but Compton scattering is the most frequent.

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47.

In the radiographic principle, "SLOB rule, "same side movement of the object is ______ and the oppsite side movement of the object is ______. What are the missing words in the same sequence.
- Lateral and buccal
- Lingual and buccal
- Lingual and both sides
- Lateral and both sides
Correct Answer

A. Lingual and buccal

Explanation

The SLOB rule in radiographic principles states that when the object being imaged moves in the same direction as the tubehead, it appears to move in the opposite direction on the radiograph. Therefore, the missing words in the same sequence are "lingual" for same side movement and "buccal" for opposite side movement.

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48.

The "rotating anode" design in an x-ray tube limits the amount of
- Lighting at anode
- Heat production at anode
- Electron production at cathode
- Speed of electrons from cathode to anode
- X-rays that are produced at the anode
Correct Answer

A. Heat production at anode

Explanation

The rotating anode design in an x-ray tube limits the amount of heat production at the anode. This is because the rotating anode allows for a larger surface area to be exposed to the electron beam, which helps to distribute the heat more evenly and prevent overheating. By reducing the heat production at the anode, the rotating anode design helps to extend the lifespan of the x-ray tube and prevent damage to the equipment.

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49.

In taking dental radiographs the greatest dose of radiation to structures in the patient jaw comes from
- The primary beam
- Leakage from the xray machine
- Scatter from the patient face
- Scatter from the pid
- Secondary radiation
Correct Answer

A. The primary beam

Explanation

The primary beam is the main source of radiation in dental radiographs. It refers to the direct radiation that is emitted from the x-ray machine and directed towards the patient's jaw. This beam carries the highest dose of radiation and is responsible for capturing the image. The other options mentioned, such as leakage from the x-ray machine, scatter from the patient's face, scatter from the PID (position-indicating device), and secondary radiation, may contribute to the overall radiation exposure but do not carry as much dose as the primary beam.

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Quiz Edited by
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Radtech Simulation Examination 9

If a subject says there might be a possibility they could be pregnant but is not 100% sure, they can be scanned.

Quiz Preview

The "p" in kVp stands for

If a volunteer states she could be pregnant you should:

Radiographs should always be viewed

The device that converts x ray energy into visible light is called a(n)

The radiograph shown here is frequently used in Orthodontics for study of the growth and development of the head. Name the radiograph

Before beginning to scan a subject, you should:

The ALARA principles refers to

The radiograph shown here is a

A research volunteer tells you they have been scanned many times for clinical reasons so there is no reason to re-evaluate this subject and they are cleared to enter the scanning room.

Intraoral film packets must be

Which of the following is a likely consequence of forgetting to remove your wallet from your pocket before entering the scan room:

If your patient complains of a body ache, dizziness or anxiety (including claustrophobia) during the middle of the scan, you should:

If you are not sure the ferromagnetic qualities of an object you should:

A subject checks the box that they have tattoos, the next step is to:

Intraoral film packets must be

To what does the term film speed refer?

The cathode and anode are parts of an x-ray tube. The anode is negatively charged.

Which form of radiation can cause ionization of atoms?

Syringe shields don't have to be labeled as long as there is a label on the syringe itself.

If there is ever a Quench in the scan room instead of the outside environment, you must remove the patient and all staff from the room immediately. What is the safety concerns?

What is the unit for measurement of magnetic field strength?

Who needs to be cleared before they enter the MRI scanning room?

Which of the following materials is most resistant to x radiation?

The advantage of a film that has emulsion on both sides is that

Which of the following statements cocerning background radiation is most accurate?

The major risk of injury or harm due to a magnet quench is:

In the event your subject is in some type of medical distress, what is the first thing you should do?

Film fog occurs when all or part of a radiograph is darkened by

The advantage of a film that has emulsion on both sides is that

The sharpness of the image is determined to a large extent by the

Caution Radioactive Materials posting required where licensed material is used, stored or likely airborne.

Every subject can choose if they would like to wear ear plugs, head set, both or nothing during the scan. It's up to each individual.

Under the new metric system for measuring dose SI the rem replaced by the

If the operating computer shut down and unplugged, the magnetic field is off and any materials, regardless for their ferromagnetic qualities can be brought into the scanning room.

70 kilovolts equals

If the intensitying screens are not in perfect contact with the film which of the following will occur?

Which of the following travel at the greatest speed?

Identify the intraoral radiograph shown

The best way to clean the intensifying screens in extraoral cassettes is with

If an object is considered safe to be used in a 1.5Tesla MR scanner, but has not been tested in a 3Tesla scanner, it should be labeled as:

The magnetic field is contained entirely in the center of the bore, it does not extend to the outside environment

Patients with which of the following prosthetic devices may be safely scanned:

Which of the following objects are potential projectiles?

What is a Quench?

Which of the following types of scatter radiation occurs most often with dental x rays

In the radiographic principle, "SLOB rule, "same side movement of the object is ______ and the oppsite side movement of the object is ______. What are the missing words in the same sequence.

The "rotating anode" design in an x-ray tube limits the amount of

In taking dental radiographs the greatest dose of radiation to structures in the patient jaw comes from

In the radiographic principle, "SLOB rule, "same side movement of the object is and the oppsite side movement of the object is . What are the missing words in the same sequence.