RADT 1010 EXAM 5 STUDY GUIDE
Contrast media (agent) - Answer -Used to change subject density of tissues/organs to
provide contrast
Negative contrast media - Answer -Decreased subject density results in increased
receptor exposure and looks black on image
Positive contrast media - Answer -Increased subject density results in decreased
receptor exposure and looks white on image
Negative contrast media example - Answer -Air and CO2
Positive contrast media example - Answer -Iodine and barium
Barium sulfate - Answer -A positive agent. Mixed with cold water for UGI. Mixed with
room temp water for BE. Do not use on suspected perforation (can cause peritonitis) do
not inject into blood stream
56 - Answer -Barium sulfates Z #
Post care of barium sulfate - Answer -Liquids to avoid inspissations
Inspissations - Answer -Thickening by dehydration (constipation)
Gastrographin - Answer -If suspected perforation when giving barium, use
_____________
Aqueous iodine - Answer -A positive agent. Used in UGI system if we suspect a
perforation.
Dosage is determined by age and weight
53 - Answer -Aqueous iodines Z #
Iodinated ionic contrast media - Answer -Positive and negative ions that may ionize
resulting in increased probability of anaphylactic reaction
Iodinated non-ionic contrast media - Answer -Does not ionize resulting in less
probability of anaphylactic reaction
Anaphylactic reaction - Answer -Symptoms: flushing, hives,nausea, shock
Treat: Benadryl
Diphenhydramine, antihistamine - Answer -Benadryl
Contrast media (agent) - Answer -Used to change subject density of tissues/organs to
provide contrast
Negative contrast media - Answer -Decreased subject density results in increased
receptor exposure and looks black on image
Positive contrast media - Answer -Increased subject density results in decreased
receptor exposure and looks white on image
Negative contrast media example - Answer -Air and CO2
Positive contrast media example - Answer -Iodine and barium
Barium sulfate - Answer -A positive agent. Mixed with cold water for UGI. Mixed with
room temp water for BE. Do not use on suspected perforation (can cause peritonitis) do
not inject into blood stream
56 - Answer -Barium sulfates Z #
Post care of barium sulfate - Answer -Liquids to avoid inspissations
Inspissations - Answer -Thickening by dehydration (constipation)
Gastrographin - Answer -If suspected perforation when giving barium, use
_____________
Aqueous iodine - Answer -A positive agent. Used in UGI system if we suspect a
perforation.
Dosage is determined by age and weight
53 - Answer -Aqueous iodines Z #
Iodinated ionic contrast media - Answer -Positive and negative ions that may ionize
resulting in increased probability of anaphylactic reaction
Iodinated non-ionic contrast media - Answer -Does not ionize resulting in less
probability of anaphylactic reaction
Anaphylactic reaction - Answer -Symptoms: flushing, hives,nausea, shock
Treat: Benadryl
Diphenhydramine, antihistamine - Answer -Benadryl
