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RADT 100 FINAL EXAM QUESTIONS AND ANSWERS
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RADT 100 FINAL EXAM QUESTIONS AND ANSWERS
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RADT 100 FINAL EXAM QUESTIONSAND ANSWERS
Three things helped pave the way to the discovery of x‐rays - Answer -1. Electricity
2. Vacuums
3. Image‐Recording Materials
who discovered to the concept of electromagnetic induction and how? - Answer -1831 -
Michael Faraday induced electric current by moving a magnet in and out of a coil
Who produced the first radiograph, but wasn't credited for x-ray discovery? - Answer -
William Goodspeed produced a radiograph in 1890
• He was not credited with discovery of X‐ rays
Who was credited of disocvering x -rays? - Answer -William Roentgen
He became interested in cathode ray experiment with the Crooke's tube
• He worked with this tube until he discovered x‐rays
Tell me about Thomas Edison: - Answer -Thomas Edison
• Primary concern was working with
fluoroscopy
• Discovered the use of calcium tungstate over barium platinocyanide
Radioactivity - Answer -here certain elements spontaneously emit ray or subatomic
particles from matter
What 3 were awarded the nobel prize for their work? - Answer -Pierre and
Marie Curie, and
Henri Becquerel
were awarded the Nobel prize for their work
Are tubes now capable of producing accurate multiple exposures? - Answer -True
Improvements in cassettes, film holders, and image receptors have made them ... -
Answer -durable and
require less radiation -> make accurate diagnoses.
, Specialized Areas - Answer -Radiation Therapy - not diagnostic
- Therapy involves treating a patient who is already diagnosed with a disease.
Nuclear Medicine ‐ radiopharmeceuticals
Sonography - sound waves
Special Procedures - Interventional radiology Mammography - of the breast; used to
detect breast cancer; used to screen large segments of the population
Tracers
(think artificially produced; nuc. med) - Answer -Tracers are a substance that emits
radiation
All of the radioactive compounds (tracers) used in nuclear medicine, often called
radionuclides or radiopharmaceuticals, are artificially produced.
The nuclear medicine technologist might also have to administer radioactive material to
patients to treat a specific disease.
Components of Sonography? - Answer -uses high frequency sound waves to form an
image.
Transducer
Ultrasound beam
An image display on a cathode ray tube or television monitor
• Transducer serves two purposes:
- TRANSMITS sound in pulses and bursts
- SENSES the echoes that are returning from the previous pulse
Interventional radiology - Answer -exams that may improve a patient's condition
• Can help the patient not have to have surgery -
Examples:
• removal of bile ducts or renal stones
• postoperative abscess drainage
• selective cancer therapy
Angiographic studies are performed:
- To demonstrate any vascular Abnormalities
- Demonstrate Pathology in the surrounding tissue and organs
Purpose of MRI - Answer -To obtain 2D views of an internal organ or structure,
(especially the brain and spinal cord)
To assess response to treatment,
(especially cancer chemotherapy or radiation therapy.)
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