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RADT 1200 - EXAM 4 QESTIONS AND ANSWERS Radiation-induced cataracts in humans follow a ______ dose-response relationship. a. threshold, nonlinear b. threshold, linear c. nonthreshold, linear d. nonthreshold, nonlinear - Answer- a. threshold, nonlinear Among the atomic bomb survivors, the number of leukemia victims has _______________ since the late 1940s and early 1950s. However, the occurrence rates of other radiation-induced malignancies have continued to ___________since the lat...

RADT 1200 - 8, 9, 10 - TEST 3 EXAM QUESTIONS AND ANSWERS When biologic effects of radiation occur relatively soon after humans receive high doses of ionizing radiation, the biologic responses demonstrated are referred to as ____________________. - Answer- Early affects The term ____________________ originates from the Greek term "soma" meaning "body." - Answer- somatic ____________________ effects are effects upon the body that was irradiated. - Answer- Somatic ...

RADT 1200 – CH 12 EXAM QUESTIONS AND ANSWERS Patient protection during a diagnostic x-ray procedure should begin with _______ - Answer- clear, concise instruction Why are immobilization devices sometimes used during radiographic exams? - Answer- to minimize patient motion Identify the two types of patient motion - Answer- 1) Voluntary 2) Involuntary What technical factor change can reduce the effects of involuntary motion? - Answer- shortening the length of exposur...

RADT 1200 CHAPTER 3 AND 4 EXAM Q’S AND A’S Direct transmission means that x-ray photons: - Answer- pass through biologic tissue without interaction Before interacting with matter, an incoming x-ray photon may be referred to as which of the following? - Answer- primary photon Noninteracting and small-angle scattered photons comprise - Answer- exit, or image formation, radiation Small angle scatter: - Answer- degrade the appearance of a completed radiographic image...

RADT 1200 CHAPTERS 11-13 QUESTIONS AND ANSWERS Effective Communication between the radiographer and the patient depends on which of the following? 1) Ensuring body language reinforces verbal discourse so that messages are understood as intended 2) Explaining the imaging procedure in simple terms, and giving instructions clearly and concisely 3) Giving the patient the opportunity to ask questions, and answering them truthfully within ethical limits - Answer- 1, 2, and 3 According t...

RADT 1200 CH 37 & 39 QUESTIONS AND ANSWERS Entrance Skin Exposure (ESE) or Entrance Skin Dose (ESD) - Answer- •Most often reported & referred to as pt. dose , easy to measure Gonadal Dose-GSD Genetically Sig. Dose - Answer- •Important due to genetic responses, easy to measure Bone Marrow Dose - Answer- ave radiation dose to the entire active bone marrow •Important due to rad-induced leukemia, est. from ESE and cannot be directly measured. Thermoluminescence dosimet...

RADT 1200 - MOLECULARS & CELLULAR RADIATION BIOLOGY EXAM QUESTIONS AND ANSWERS A multistage process that first involves the production of reactive free radicals that are created by the interaction of radiation with water molecules - Answer- Indirect action Concept that the cell dies if the master, or key, molecule becomes inactive as a consequence of exposure to ionizing radiation - Answer- Target theory Solitary atoms or most often a combination of atoms that behave as single e...

RADT 1200 – FINAL EXAM Q’S AND A’S The transfer of energy from one location to another - Answer- Radiation The degree to which the diagnostic study accurately reveals the presence or absence of disease in the patient, while adhering to radiation safety guidelines - Answer- Diagnostic efficacy The amount of ionization produced in air when ionizing radiation is present - Answer- Exposure Exposure is measured in - Answer- Coulomb per kilogram The amount of energ...

RADT1200 CHAPTERS 11, 12, 15 & 16 QUESTIONS AND ANSWERS All digital imaging devices are subject to certain artifacts such as 1. aliasing 2. moire patterns 3. contouring - Answer- all of the options the protective tube housing serves as a shield against _______ entering the X-ray tube, thereby preventing electric shock while also facilitating the cooling of the X-ray tube. - Answer- the high voltage when using digital fluoroscopy systems. making use of the last image hold f...

RADT 1200 CH33 EXAM QUESTIONS AND ANSWERS ionizing radiation effects that occur w/in days or weeks of exposure - Answer- deterministic effects deterministic effects are initiated by ____ doses and are not normally encountered in modern radiology - Answer- high SI units for radiation in air - Answer- Gray a traditional units for radiation in air - Answer- Roentgen SI units for occupational dose - Answer- Sievert traditional units for occupational dose - Answe...

HCPCS II CODES EXAM AND QUESTIONS ANSWERS HCPCS Level II codes are developed and maintained by the CMS HCPCS __________. - Answer- workgroup Services and procedures that are reimbursed by a MAC can be found in the _________ Benefit Policy Manual. - Answer- Medicare Whether a service is covered or excluded under the Medicare program can be found in the Medicare National Coverage ______ Manual. - Answer- Determinations HCPCS Level II _________ are attached to any HCPCS Level I (CPT) or...

Dental Sealants Questions and Answers The purpose of filter material in the sealant is to increase occlusal wear - Answer- False An unfilled sealant material does not require an occlusal adjistment after placement because the natural wear is sufficient to establish occlusion - Answer- True The primary cause of sealant retention failure is moisture contamination - Answer- True Scientific studies have proved that properly placed dental sealants are _______ percent effective in protecti...

SEALANT 107 EXAM QUESTIONS AND ANSWERS What kind of material are sealants made of? - Answer- Liquid resin What surfaces do dental sealants fill? - Answer- Deep pits and fissures on teeth What surfaces are filled? - Answer- Occlusal, lingual of max, and buccal of mand Why are sealants placed? - Answer- Fills places a toothbrush cannot reach and creates a barrier between tooth and oral environment Term for broadening occlusal areas, circa 1926 - Answer- Enameloplasty Term for res...

Sealant State Exam Questions and Answers child classified at moderate risk for caries - Answer- Frequent sugar exposure, w compromised oral hygiene Adults with high risk demonstrates following criteria - Answer- 3 or more caries in past 3 years Factors contributing to the formation of caries - Answer- Fissures less than .1 mm side and enamel at base of fissure thinner than other areas of the tooth Fissure described as - Answer- The imperfect joining of enamel and linear fault A pi...

Sealants Study Guide Exam Questions and Answers Approximately, how much decay is found in the pits and fissures?* - Answer- 50-85% What are the 3 types of pit and fissure openings?* - Answer- U type, V type, and I type. Which pit and fissure opening is bottle neck?* - Answer- I type Which pit and fissure opening is narrower?* - Answer- V type Which pit and fissure opening is wider?* - Answer- U type Pit and fissure sealants have been found to be _____% effective in prevention o...

SEALANT STATE EXAM QUESTIONS AND ANSWERS Child classified at moderate risk for caries - Answer- frequent sugar exposure, w/ compromised oral hygiene Adults w/ high risk demonstrates following criteria - Answer- 3 or a more caries in past 3 years Factors contributing to the formation of caries - Answer- Fissures less than .1mm wide & enamel at base of fissure thinner than other areas of the tooth Fissure described as - Answer- Imperfect joining of enamel & linear fault A pit is des...

Dental Sealants Exam Questions and Answers Self-cured sealants are packaged as a liquid-powder kit that is mixed with a cement spatula on a paper pad like cements. True or false? - Answer- False Which of the following is used to clean the teeth before etching? - Answer- Moistened pumice and a prophy brush When checking a sealant that you just placed, your explorer skips over a break in the smooth surface of the sealant. What should you do? - Answer- Apply additional sealant to cover the...

SEALANTS STATE EXAM QUESTIONS AND ANSWERS The primary cause of dental caries is - Answer- Bacteria and fermentable carbohydrates The calcified tissue that makes up the tooth is - Answer- dentin Who is legally allowed to place sealants? - Answer- RDA, RDAEFII, Dentist What is the procedure to follow of there appears to be saliva contamination during the etching process? - Answer- Re-etch for 10 seconds and rinse etched area thoroughly and dry for approximately 20-30 seconds When ...

SEALANT EXAM QUESTIONS AND ANSWERS At what age is the highest risk period for decay to occur - Answer- 3 years old Protective eyewear for patient and operator, also avoiding contact with oral tissue are the precautions you are taking when using (what material) - Answer- Phosphoric Acid (Etchant) What material is used for retention on the emamel - Answer- Etchant Why can't bacteria survive beneath the sealed sealant - Answer- Carbs can't reach the tooth through sealant Define...

Energy Advisor Growmark Exam Questions and Answers API - Answer- American Petroleum Institute CFPP - Answer- Cold Filter Plugging Point DI - Answer- Direct Inject DPF - Answer- Diesel Particulate Filter ECM - Answer- Engine Control Module ECU - Answer- Electronic Control Unit EGR - Answer- Exhaust Gas Recirculation EMA - Answer- Engine Manufacturers Association EPA - Answer- US Environmental Protection Agency FAME - Answer- Fatty Acid Methyl Ester FIE - Answer- F...