11/16/2024 10:16 AM
NURS752 Exam 2 Questions With Correct
Answers
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
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11/16/2024 10:16 AM
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
Eyes
Face
Arms
Speech
Time
for stroke- CT or MRI first? - answer✔CT to determine if bleed is hemorrhagic or ischemic
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