GRADED A+| 100% CORRECT SCORE
Reasons to order an X ray - (answer)infection, dyspnea, chest pain, trauma, hemoptysis, suspected mass
What densities can be seen on Xray - (answer)air, fat, water (soft tissue), bone and metal
How does air look on X ray? - (answer)blackest- less dense
What would X ray for pt with emphysema or COPD exacerbation look like? - (answer)Hyperinflated with
flattened diaphragm and coarse bronchovesicular markings
What would Xray for pneumonia pt look like? - (answer)Ground glass opacities
Why would you order a CT? - (answer)X ray and exam is inconclusive. Disease process ongoing w/o clear
dx. Can detect things like PE, lung mass, and help stage tumors d/t better visualization of structures, soft
tissues and vessels than X ray
Special considerations for CT - (answer)-high resolution scan best for intersitial disease like pulm fibrosis
-consider CT pulmonary angiography when ruling out PE
-contrast scans preferred but contraindicated in renal impairment and allergies
Which lung has 3 lobes? - (answer)right
T or F: diaphragm marks the lowest part of the lungs - (answer)False
Normal CTR - (answer)< 1:2
What are the most dense structures on a normal X ray? - (answer)bones
How do you measure the adequacy of inspiration x ray? - (answer)clavicle and ribs are landmarks
, <5 ribs =incomplete inspiration >7=hyperexpansion
Checklist for reading X ray - (answer)- heart: silhouette sign
-mediastinum
-diaphragm
-lungs
-skeleton
When is radiological investigation not warranted? - (answer)uncomplicated URI, asthma, minor trauma,
3 criteria to determine the quality of a chest X ray - (answer)rotation, inspiration and penetration
Does MRI use ionizing radiation? - (answer)no
Advantages of MRI - (answer)No ionising radiation, high quality image produced, distinguishes between
different types of soft tissue, not stopped by bone, no known side effects, many details without contrast
Disadvantages of MRI - (answer)high costs, longer scanning times than CT, cannot be used in people with
implanted metal devices, not widely available, many exclusions, need protocol sequence
MRI or CT: initial eval of trauma or hemorrhage - (answer)CT without contrast
MRI or CT: eval of infection, inflammation, malignancy, seizure - (answer)MRI with and without contrast
diagnostic test for epilepsy - (answer)EEG
BEFAST - (answer)Balance
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