Alara principle Study guides, Class notes & Summaries

Radiation Protection in Medical Radiography Final Exam – With Questions & 100% Accurate Answers Radiation Protection in Medical Radiography Final Exam – With Questions & 100% Accurate Answers Which of the following is a form of radiation that is capable of creating electrically charged particles by removing orbital electrons from the atom of normal matter through which it passes? a. Ionizing radiation b. Nonionizing radiation c. Subatomic radiation d. Ultrasonic radiation - ANSWER - ...

Sonographers should be aware of work-related musculoskeletal disorders. Best practice while scanning is to avoid abducting the arm more than how many degrees? a. 50 b. 90 c. 30 d. 40 - correct answer c. 30 Which action demonstrates best practice during ultrasound exams regarding the ALARA principle? a. The exposure time should be extended during the exam. b. use the lowest possible output power that provides a diagnostic image. c. use the lowest possible gain. d. Ensure that the ti...

ARDMS SPI STUDY GUIDE QUESTIONS AND ANSWERS ALREADY PASSED In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... Remain the Same because stiffness and density affect Propagation Speed. What is the audible range? 20-20,000Hz >20,000Hz=Ultrasound Frequency is measured in Hertz (Hz) is Cycles per Second Not affected by sonographer Increase Frequency; Decrease Depth A period is the length of time it takes for one complete wavelength to pass a fixed poin...

Davies SPI REVIEW EXAM QUESTIONS & ANSWERS 2023/2024 What action below would be most in keeping with the ALARA principle while performing a diagnostic ultrasound examination? A: Allow multiple students to scan an obstetrical patient because the fetus is in a good position for imaging. B: Prolong the sonogram to make videos of the fetus for each family member. C: Complete the diagnostic scan in a timely fashion at the lowest output power that achieves a quality image. D: Maximize the ac...

SPI Mock Exam Verified Solutions Reducing the likelihood of bioeffects from acoustic energy is the mission of the: A. Nyquist limit B. Reynolds number C. Huygens principle D. ALARA principle E. Poiseuille principle D. ALARA principle The number of cycles in a pulse directly related to the: A. Duty factor B. SPL C. operating frequency D. PRF E. propagation speed of the medium B. SPL The Doppler shift frequency is proportional to the: A. Cosine values B. Dopp...

Reducing the likelihood of bioeffects from acoustic energy is the mission of the: A. Nyquist limit B. Reynolds number C. Huygens principle D. ALARA principle-ans E. Poiseuille principle The number of cycles in a pulse directly related to the: A. Duty factor B. SPL-ans C. operating frequency D. PRF E. propagation speed of the medium

Which of the following is composed of a single central nucleus? - Answer-A-Correct What is the time it takes a radioactive isotope to transform 50 percent of its atoms by radioactive decay? - Answer-C-Correct Which is a form of non-nuclear radiation? - Answer-A-Incorrect What is the SI (international) unit for activity? - Answer-A-Correct RADIAC instruments that collect and measure the ion pairs created when radiation interacts with matter utilizes which operating principle? - Ans...

Sonographers should be aware of work-related musculoskeletal disorders. Best practice while scanning is to avoid abducting the arm more than how many degrees? a. 50 b. 90 c. 30 d. 40 - Answer- c. 30 Which action demonstrates best practice during ultrasound exams regarding the ALARA principle? a. The exposure time should be extended during the exam. b. use the lowest possible output power that provides a diagnostic image. c. use the lowest possible gain. d. Ensure that the time gain ...

Ionising Radiation - Answer-Type of electromagnetic radiation that possesses energy, capable of passing through matter such as human tissue What happens when x-rays pass or hit the atoms of the matter? - Answer-They are: Unaltered, Scattered, Absorbed Radiopaque - Answer-Substances of greater density that absorb x-rays and appear in shades of white on film Radiolucent - Answer-Substances of less density that allow x-rays to pass through and appear dark on radiographs Scattered radiation ...

Absorption - ️️When all of the x-ray energy is absorbed by the ejected electron Acute radiation syndrome - ️️Radiation sickness that occurs in humans after whole-body doses of 1 Gy or more of ionizing radiation delivered over a short time; not seen in diagnostic imaging ALARA - ️️Principle that states that rad exposure should be As Low As Reasonably Achievable Anatomic Position - ️️The position in which the patient is standing erect, with the face directed forward, arms ...