Intravenous Iodinated Contrast

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Chapter 17

• Intravenous Iodinated Contrast

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Terms to know

• ____________________
• Movement of a solvent across a semipermiable
  membrane from a lower region to a higher region
• __________________
• The number of dissolved ions in a solution. The
  concentration of a solution.

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More Terms

• ___________________
• The force that a dissolved substance exerts on a
  semipermeable membrane.
• ___________________
• The capability of being dissolved
• __________________
• To separate into ions to dissociate atoms or
  molecules into electrically charged atoms

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More Terms

• ______________
• No change in cell volume.
• ______________
• Increase in osmotic pressure.
• _______________
• Decrease in osmotic pressure
• _______________
• The ability of a fluid to flow easily

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Iodinated Contrast

• ____________
• 2 types ________________

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Ionic ContrastStructure

• Benzoic acid ring model with
• ____________
• Negatively charged _________
• Stabilizing and ____________ the contrast
• Positively charged _________
• ______ increases ________of the contrast

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Ionic Contrast

• Breaks apart into 2 particles
• _______
• _______
• ______________
• 3 iodine particles
• 2 osmotic particles

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Ionic Cont

• Increase ____________
• Increase ____________
• _____________
• Higher chance of a ____________

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Non-Ionic

• Same basic structure
• ________ side chains with ____________ elements.

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Non-Ionic Contrast

• ______________break apart.
• Decreased ____________
• _________ chance of a ________
• _____________

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Non Ionic Cont

• Increased ________________
• Might need __________to compensate for decreased
  _______________

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Prior to injecting

• ____________________________________
• Thorough history needs to be obtained
• Any allergies
• ________________
• _______________
• Kidney problems (Stones dont count)
• Asthma, hay fever
• ____________________
• ____________
• On _______________________

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Prior to Injecting Cont

• BUN and Creatinine levels
• Creatinine - __________________
• BUN ___________________

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If there are contraindications

• Notify radiologist.
• May still be possible with prep.

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Drawing up the contrast

• ________________????
• Warm contrast to ________________
• Use only _____________and syringe
• Draw up protocol developed amount
• If pt already has an IV line
• __________________

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Common feelings

• During injection
• _______________(due to osmotic events)
• __________
• ___________
• Watch for reactions

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Reactions

• Generally happen within first ________.
• Stay with the patient at a _____________
• _______ with the patient and watch for any signs.

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Reaction Categories

• Vasomotor Effect
• Anaphylactic Reaction
• Vasovagal Reaction
• Acute Renal Failure

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Vasomotor Effect_________

• Technologist can assist
• __________
• Nausea / Vomiting
• __________________
• Lightheaded
• _______________
• ______________
• Symptoms pass shortly

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Anaphylactic________________

• Technologist calls for help
• ______________
• Tachycardia
• _________________
• _________________
• Angioedema
• Hypotension
• __________________

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Vasovagal ___________

• Technologist calls for help __________!!!!!!!!
• Hypotension
• ________________
• _________________
• Loss of consciousness
• _______________
• Laryngeal edema
• __________________
• Difficulty Breathing
• ________________

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Acute Renal FailureSevere

• May not be obvious for up to ________post
  injection
• Diminished urine output
• __________

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Prepare for a reaction

• Make sure informed consent is signed
• Approx __________________________
• Know reaction _______ in department
• Know where the __________is and have it
  accessible.
• _____________the patient alone
• If need be ____________ !!!!!!!!!!!!!!!!!!!!

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Post injection

• Monitor pt for reaction
• Continue with exam
• Normal kidney will excrete _______ of contrast
  within __________

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What else to watch for

• Kidneys will show once contrast if filtered
  through
• A _________ could block contrast progression
• Contrast is _______ than blood can push
  ___________and cause pain.