Maximum accumulated dose - Study guides, Class notes & Summaries

Gas Ventilation - ANSWERXe 133, 81 KeV, 5.3 half life; reactor produced dose: 10-20 mCi imaging: posterior position negative pressure room required uses activated charcoal trap to accumulate the exhaled xenon gas until decayed to background single breath: during inhalation wash in / equilibrium : collected while the xenon distributes through aerated portions of the lung wash out : while radioactivity is cleared from lungs Sr 89 Chloride - ANSWERStrontium Chloride, Metastron 1.46 MeV m...

DANB RHS Exam Questions with Correct Answers Which of the following exposures is used to diagnose interproximal caries? - Answerbitewing The population most susceptible to radiation damage is - Answer-infants To minimize potential infections from semi-critical items it is important the operator - Answer-clean and disinfect devices after removal of surface barriers Patient should wear a thyroid collar during which type of radiographic exposure - Answer-Intraoral radiograph The total des...

What is the most common cause for bacterial meningitis in children under five years of age? - Correct Answer-Haemophilus influenza type B How is giardiasis usually transmitted to others? - Correct Answer-person-to-person transfer of cysts from the feces of the infected individual Which of the following duties of state and local health agencies is intended to ensure that the public's health and welfare are protected? - Correct Answer-Regulatory responsibilities What is a measure of the am...

DENTAL RADIOLOGY CODA COMPLETE SOLUTIONS In x-radiation, ionization occurs when an election is displaced from an atom Which of the following are found in the nucleus of the atom? protons , neutrons , electrons A gray (rad) is defined as the unit of absorbed dose of radiation per gram of tissue Which of the following cell types is the most sensitive to carcinogenics following prolonged exposure to ionizing radiation? Blood The part of an atom that carries a negative charge is a/an ele...

As a source is retracted into the shielded position from a collimated exposure, the survey meter measurement should? Increase, then decrease The term used to express the number of curies of radioactivity per unit of source weight is? Specific Activity The best means to reduce exposure from an external radiation is? To optimize the factors of time, distance, and shielding Radioactive source leak tests are checked for? Contamination from capsule rupture Daily inspec...

Added filtration in the xray tubehead protects the ___ ANSWER: Patient What equation is used to determine the occupational maximum accumulated dose of radiation? ANSWER: Age minus 18 times 5 rems/year When preparing to take a digital radiograph, after selecting the appropriate sensor size for the patient, the next step would be to? ANSWER: Place a barrier on the sensor. What error occurs when the vertical angulation is incorrect? ANSWER: elongation and foreshortening Semi cri...

Added filtration in the xray tubehead protects the ___ ANSWER: Patient What equation is used to determine the occupational maximum accumulated dose of radiation? ANSWER: Age minus 18 times 5 rems/year When preparing to take a digital radiograph, after selecting the appropriate sensor size for the patient, the next step would be to? ANSWER: Place a barrier on the sensor. What error occurs when the vertical angulation is incorrect? ANSWER: elongation and foreshortening Semi cri...

Added filtration in the xray tubehead protects the ___ ANSWER: Patient What equation is used to determine the occupational maximum accumulated dose of radiation? ANSWER: Age minus 18 times 5 rems/year When preparing to take a digital radiograph, after selecting the appropriate sensor size for the patient, the next step would be to? ANSWER: Place a barrier on the sensor. What error occurs when the vertical angulation is incorrect? ANSWER: elongation and foreshortening

Is an example of a patient protection technique used before x-ray exposure? - Proper prescribing of radiographs The Collimator: - Restricts the size and shape of the x-ray beam Which Type of PID would be most effective in reducing patient exposure? - 8 inch rectangular PID Speed film is currently the fastest intraoral film available? - F On some dental x-ray machines, only the ____can be altered; the other parameters are preset by the manufacturer. - Exposure Time Which one o...