Radiology Pass ان شاء الله not resit Exam

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Questions and Answers

What type of effect is characterized by vomiting within 1 hour of radiation exposure?

Cumulative Effect

Stochastic Effect

Latent Effect

Deterministic Effect (correct)

Which X-ray film is known to produce the highest resolution image?

F-speed film (correct)

C-speed film

E-speed film

D-speed film

What is the minimum radius of the controlled area during intraoral radiography, measured from the patient's head?

2.5 metres

2 metres

1.5 metres (correct)

1 metre

Which body provides recommendations regarding dose limitation through justification, optimisation, and limitation principles?

International Commission for Radiation Protection Signup and view all the answers

What is the estimated risk of developing a fatal cancer from a full dental panoramic tomography using modern digital equipment?

1 in one million Signup and view all the answers

What principle is being applied when a dentist assesses clinical information before deciding to take a radiograph?

Justification Signup and view all the answers

What advantage does a rectangular collimator provide during radiography?

Improves image quality by reducing scatter Signup and view all the answers

In radiographic practices, what does taking a periapical radiograph instead of a panoramic one illustrate?

Minimisation Signup and view all the answers

Which radiographic technique is the most reliable for visualising the root apex of a tooth?

Paralleling technique Signup and view all the answers

What is the primary purpose of a bitewing radiograph?

To show multiple erupted teeth in one image Signup and view all the answers

Which technique would you employ to show the bucco-palatal position of an unerupted canine?

Panoramic technique Signup and view all the answers

Who has the ultimate responsibility to ensure that all staff receive appropriate training in radiation safety?

The employer Signup and view all the answers

Which official body is responsible for the publication of the Ionising Radiation (Medical Exposure) Regulations 2017?

Department of Health and Social Care Signup and view all the answers

Where should the warning sign be placed in a dental practice where intraoral radiographs are taken?

At the entrance to the dental surgery Signup and view all the answers

Which measurement term accounts for the part of the body being irradiated?

Effective dose Signup and view all the answers

Which term is used to measure radiation absorbed dose?

Grays Signup and view all the answers

What helps to reduce the quantity of low energy photons hitting the patient during X-ray procedures?

Aluminium filter Signup and view all the answers

What component of a dental X-ray machine can get very hot during operation?

Target Signup and view all the answers

What particle does the atomic number of an atom refer to?

Proton Signup and view all the answers

What is the name of the electrically negative end of a dental X-ray tube?

Cathode Signup and view all the answers

What is typically used to help reduce radiation dose when using traditional X-ray films inside an extraoral cassette?

Intensifying screens Signup and view all the answers

How does a thyroid collar function in protecting the patient during radiographic procedures?

It physically shields the thyroid gland. Signup and view all the answers

What component is primarily responsible for removing low energy photons from the X-ray beam?

Aluminium filter Signup and view all the answers

Which type of X-ray film provides the lowest radiation dose to patients?

F-speed film Signup and view all the answers

What is the effect of doubling the distance of the X-ray tube from the patient?

It reduces the radiation dose to one-fourth. Signup and view all the answers

What is the definition of stochastic effects in the context of radiation exposure?

Effects that occur randomly and are probabilistic. Signup and view all the answers

Which type of effect is associated with radiation exposure above a certain threshold?

Deterministic effect Signup and view all the answers

Which imaging investigation typically involves the highest radiation dose?

Cone Beam CT scan of the full Mandible and Maxilla Signup and view all the answers

Who is allowed to remain in the controlled area during intraoral radiography?

The patient only Signup and view all the answers

Study Notes

Radiology RESIT Exam - Study Notes

Q1: A dentist assesses clinical information from another dentist to decide if a radiograph is needed. This is an example of Authorization.
Q2: A dentist/dental therapist using a rectangular collimator to take a bitewing radiograph is an example of Justification.
Q3: Deciding to take a periapical instead of a panoramic radiograph for localized periodontal pocketing is an example of Optimisation.
Q4: The Bisected angle technique is most reliable for showing the root apex of a tooth.
Q5: The Panoramic technique displays up to ten erupted teeth in one image.
Q6: The Paralleling technique is used to show the co-palatal position of an unerupted canine.
Q7: Item B in the radiograph is a Non metallic restoration.
Q8: Item D in the radiograph is the Floor of the mouth.
Q9: Item G in the radiograph is Alveolar bone.
Q10: The Department of Health and Social Care published the "Ionising Radiation (Medical Exposure) Regulations 2017".
Q11: The employer is ultimately responsible for ensuring all staff receive appropriate training.
Q12: The practitioner will authorize a radiation exposure.
Q13: The operator presses the exposure button for an X-ray on a patient.
Q14: The practice manager is responsible for ensuring compliance with the Local Rules.
Q15: The referrer and radiation protection supervisor are allowed in the controlled area during an X-ray exposure.
Q16: The warning sign for a controlled area with X-rays should be placed above the dental chair.
Q17: Equivalent dose takes into account the part of the body being irradiated.
Q18: Effective dose takes into account the type of radiation used.
Q19: Radiation absorbed dose is measured in Grays or milligrays.
Q20: Collective dose allows comparison of radiation doses.
Q21: Community dose is used when considering a whole population.
Q22: A radiation dose of 2 mSv is called Radiation absorbed dose.
Q23: The target gets very hot in an X-ray machine.
Q24: Aluminium filter helps reduce the quantity of low-energy photons hitting the patient.
Q25: The dental X-ray tube is made of glass.
Q26: The cathode is the electrically negative end of the tube.
Q27: The outer casing of the tube is made of aluminium.
Q28: The dentist/dental therapist is allowed to press the exposure button.
Q29: Proton in an atom is the particle that corresponds to the atomic number.
Q30: Electron is important for X-ray production.
Q31: The longer side of a rectangular collimator aperture is 60 millimetres.
Q32: An intensifying screen helps reduce radiation dose when using X-ray films in an extraoral cassette.
Q33: A thyroid collar is used to protect the patient's thyroid during an upper standard occlusal radiograph.
Q34: A thyroid collar is required for pregnant patients having bitewings taken.
Q35: Component B is the Transformer.
Q36: Component C is the Aluminium filter.
Q37: Component D is the Spacer cone.
Q38: Component E is the Lead shield.
Q39: Component F is the Oil.
Q40: Component G is the Collimator.
Q41: Component H is the Target.
Q42: The aluminium filter removes the lowest energy photons from the X-ray beam.
Q43: The collimator changes the shape of the X-ray beam.
Q44: Using a circular collimator instead of a rectangular one results in 2 times more harmful relative harm to the patient.
Q45: Doubling the distance from the X-ray tube to the patient reduces the relative harm to the patient by a factor of 4 times less harmful.
Q46: The dentist/dental therapist is allowed to remain in the controlled area during an intraoral radiograph.
Q47: F-speed film is associated with the lowest radiation dose.
Q48: A full Dental Panoramic Radiograph is the highest radiation dose imaging investigation(using standard equipment).
Q49: Genetic effects relate to genetic effects.
Q50: Deterministic effect occurs only above a threshold dose.
Q51: Photoelectric effect is when X-ray photons are totally absorbed by the patient.
Q52: Deterministic effect is vomiting within 1 hour of exposure.
Q53: F-speed film is associated with the highest resolution.
Q54: The minimum controlled area size (radius) is 1.5 meters.
Q55: Item C in the radiograph corresponds to mesial caries in dentine.
Q56: International Commission for Radiation Protection (ICRP) provides dose limitation recommendations.
Q57. The estimated risk of a fatal cancer induction from a full dental panoramic tomograph using modern digital equipment is 1 in twenty million.
Q58: Image intensifier produces an indirect digital image .
Q59: Radiographic film produces the highest spatial resolution amongst the given choices.
Q60: Image intensifier is associated with a higher radiation dose.

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Description

Prepare for your Radiology RESIT exam with these essential study notes. Each question focuses on key concepts such as authorization, justification, and techniques used in dental radiography. Test your knowledge and ensure you're ready for your upcoming examination.

Radiology Pass ان شاء الله not resit Exam - Study Notes