Chapter 14
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Chapter 14. Intravenous Iodinated Contrast. Why use IV Contrast. ____________ System ___________ System _______ . Terms to know. ____________ To separate into ions; to dissociate atoms or molecules into electrically charged atoms ____________ – The capability of being dissolved.

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Chapter 14

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Chapter 14

Chapter 14

Intravenous Iodinated Contrast


Why use iv contrast

Why use IV Contrast

  • ____________ System

  • ___________ System

  • _______


Terms to know

Terms to know

  • ____________

    • To separate into ions; to dissociate atoms or molecules into electrically charged atoms

  • ____________

    – The capability of being dissolved


More terms

More Terms

  • ____________

    – 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.

  • ___________ Pressure

    • The force that a dissolved substance exerts on a semipermeable membrane.


More terms1

More Terms

  • ____________

    –No change in cell volume.

  • ______________

    – Increase in osmotic pressure.

  • ______________

    • Decrease in osmotic pressure

  • ______________

    • The ability of a fluid to flow easily


Iodinated contrast

Iodinated Contrast

  • ______________

  • 2 types

    • Ionic and Non-ionic


Ionic contrast basic structure

Ionic ContrastBasic Structure

  • 6 sided ring:

    • 3 ________ atoms

      • __________ element

    • __________

      • Negative charged

        • Stabilize and detoxify

    • ___________

      • Positive charge

        • Salt, increase solubility


Ionic contrast

Ionic Contrast

  • Breaks apart into _____________

    • Anion

    • Cation

  • __________– Ratio

    • _________particles

    • _________particles


Ionic continued

Ionic Continued

  • Increase ______________

  • Increase ____________Pressure

  • Hypertonic

  • ___________ chance of a reaction


Non ionic

Non-Ionic

  • Same basic structure

  • Replaces ____________with ____________elements.


Non ionic contrast

Non-Ionic Contrast

  • _____________break apart.

  • Decreased ____________

    • __________ chance of a reaction

  • __________ – Ratio


Prior to injecting

Prior to injecting

  • GET AN _________________________!!!

  • Thorough history needs to be obtained

    • Any allergies

    • ____________ sensitivity

    • Sickle Cell

    • Kidney problems (Stones don’t count)

    • ______________, hay fever

    • Prior reaction with X-ray contrast

    • Diabetic

    • On ___________


Prior to injecting con t

Prior to Injecting Con’t

  • BUN and Creatinine levels:

    • Creatinine - ______________

    • BUN – _______________


If there are contraindications

If there are contraindications

  • Notify ____________

  • May still be possible with prep.


Drawing up the contrast

Drawing up the contrast

  • Review your ‘6’ rights

    • ________

    • Drug

    • __________

    • Route

    • ___________

    • Documentation


Common feelings

Common feelings

  • During injection

    • ____________feeling (due to osmotic events)

    • ____________ taste

    • Nausea

  • Watch for _____________


Reactions

Reactions

  • Generally happen within first __________.

  • Stay with the patient at a minimum ______________

  • ________ with the patient and watch for any signs.


Reaction categories

Reaction Categories

  • Mild - ___________ Effect

  • Moderate - ___________ Reaction

  • Severe - ___________Reaction

  • Organ Specific


Vasomotor effect mild

Vasomotor EffectMild

  • Technologist _________

    • Anxiety

    • Nausea / Vomiting

    • Mild, scattered Hives (uticaria)

    • Lightheaded

    • _____________

    • Extravasation

  • Symptoms pass ___________


Anaphylactic mild or moderate

AnaphylacticMild or Moderate

  • Technologist ____________

    • Excessive urticaria (hives)

    • ___________

    • Laryngospasm

    • Bronchospasm

    • _____________

    • Hypotension

    • Excessive ___________


Vasovagal severe

Vasovagal Severe

  • Technologist ______________!!!!!!!!

    • Hypotension

    • ______________

    • Cardiac or respiratory arrest

    • Loss of consciousness

    • _________________

    • Laryngeal edema

    • ________________

    • Difficulty Breathing

    • Shock


Organ specific severe

Organ-SpecificSevere

  • Cardiac – ___________

  • Respiratory - Pulmonary Edema

  • Vascular - Thrombosis

  • Nervous - _____________

  • Renal - Complete or Temporary failure

  • ____________show immediate symptoms


Prepare for a reaction

Prepare for a reaction

  • Make sure informed consent is signed

  • Approx_________________die

    • Current practice uses __________ only decreasing the chance

  • Know reaction protocol in department


Preperation

Preperation

  • Know where the _________is and have it accessible.

  • _____________leave the patient alone

  • If need be _________________


Post injection

Post injection

  • Monitor pt for ______________

  • Continue with exam

  • Normal kidney will excrete __________ of contrast within __________


What else to watch for

What else to watch for

  • Kidneys will show once _________ is filtered through

  • A ______________contrast progression


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