Use your research skills to fill in the table below to help Sarah’s mom understand why they rushed Sarah in for a CT scan when they got to the hospital and why they wanted her consent. Why the doctor Complete Advantages of Disadvantages of the wanted a CT (ie. how Name diagnostic test diagnostic test the image is formed) -very fast (few Computed -similar process to -x-rays are a type of minutes to do test) Tomography x-ray production, ionization radiation -can produce but a CT scanner (which means the more detail than a has a large circular photons carry traditional x-ray rotating frame with enough kinetic -several thousand an x-ray tube energy to liberate an images can be mounted on one electron from an taken in one side and a detector atom or molecule; rotation resulting on the opposite making it an ion); in a complete side. A fan shaped this is a known cross section of beam of x-rays is carcinogen the body created as the -allergic reaction to -can produce 3D rotating frame spins contrast agent is images and is detected on possible -safe for people the other side. with pacemakers Name: _________________________ Date: ____________ KEY HSci20: DT1 Diagnostics Medical Imaging Scenario #2b: Sarah’s Continued Care After the doctor sees Sarah’s CT scan, he immediately orders a head MRI because he sees that her CT scan was abnormal. Even though Sarah is conscious now, he wants to take another look at the happy haps in her head. Below are Sarah’s MRI results: Use your research skills to determine they the doctor ordered an MRI on top of the CT Sarah had already undergone. In addition, find out how this procedure works so you can explain it to Sarah. What does an MRI Complete Why the doctor wanted an MRI Advantages of the procedure entail for Name (ie. how the image is formed) diagnostic test the patient?
Use your research skills to fill in the table below to help Sarah’s mom understand why they rushed Sarah in for a CT scan when they got to the hospital and why they wanted her consent. Complete Name Why the doctor wanted a CT (ie. how the image is formed) Advantages of diagnostic test Disadvantages of the diagnostic test Computed Tomography -similar process to x-ray production, but a CT scanner has a large circular rotating frame with an x-ray tube mounted on one side and a detector on the opposite side. A fan shaped beam of x-rays is created as the rotating frame spins and is detected on the other side. -very fast (few minutes to do test) -can produce more detail than a traditional x-ray -several thousand images can be taken in one rotation resulting in a complete cross section of the body -can produce 3D images -safe for people with pacemakers -x-rays are a type of ionization radiation (which means the photons carry enough kinetic energy to liberate an electron from an atom or molecule; making it an ion); this is a known carcinogen -allergic reaction to contrast agent is possible Name: _________________________ Date: ____________ HSci20: DT1 Diagnostics KEY Medical Imaging Scenario #2b: Sarah’s Continued Care After the doctor sees Sarah’s CT scan, he immediately orders a head MRI because he sees that her CT scan was abnormal. Even though Sarah is conscious now, he wants to take another look at the happy haps in her head. Below are Sarah’s MRI results: Use your research skills to determine they the doctor ordered an MRI on top of the CT Sarah had already undergone. In addition, find out how this procedure works so you can explain it to Sarah. Complete Name Why the doctor wanted an MRI (ie. how the image is formed) Advantages of the diagnostic test What does an MRI procedure entail for the patient?
health_sci_20_board_notes.docx