Radiology Pass ان شاء الله not resit Exam - 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.