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14 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What are the physical properties of Barium Sulfate?
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1. absorbs x-rays greater than tissue which creates contrast
2. no irritant or side effects 3. accurate delineation of organ 4. persistant in system long enough to take x-rays 5. Total expulsion from body |
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Why is the proper amount of concentration important for Barium Sulfate?
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It has to be concentrated enough to absorb x-rays
Why is the correct viscosity important as well? |
It has to be able to flow and still be able to coat the organs
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What other additives may be added to barium sulfate?
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preservatives
flavorings/sweeteners coloring |
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What is large particle Barium and what is it used for?
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It is high density, not meant to be diluted and used for double contrast exams.
What is small particle barium and what is it used for? |
it is small density, used for single contrast exams and can be diluted and it does not separate in the GI tract
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what is used for small intestine?
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Oral formulations of Ba sulfate and methylcellulose (non-digestible starch)
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list the 10 interactions or contraindications for barium sulfate
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1. suspected perforation
2. patient's age 3. diverticulitus;ulcerative colitis 4. long term steroid use 5. colon biopsy within 2 weeks 6. pregnancy 7. mental retardation, confusion, dizziness 8. recent onset of constipation, diarrhea or both 9. nausea, vomiting 10. sedated |
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name the 3 possible causes of perforation of colon
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1. overinflated cuff
2. foreign object 3. steroid therapy |
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name the 5 possible adverse reactions to use of barium
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1. Peforation/Extravasation/Peritonitis
2. Inflammation and degradation of colon 3. Dilation and rupture of colon 4. Vaginal rupture 5. Water absorption causing increased blood volume (hypervolemia |
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Out of the following exams involving contrast medium which ones involve some kind of preparation before:
Esophagram UGI Small Bowel Ba Enema CT – Stomach |
Esophagram - None
UGI - NPO Small Bowel -low residue diet for 2 days prior Ba Enema -Large amts. of fluid; fluid diet; day prior; NPO; cleansing enema CT – Stomach - NPO night prior MVS - none |
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After an exam with Barium what should we instruct the patient to do?
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Drink plenty of water and fluids.
why is this important? |
dried barium may cause an obstruction
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Put these exams in the correct scheduling sequence:
Bilary System Fiberoptic exams (endoscopy) Upper GI Series CT studies Lower GI series Urinary tract |
Fiberoptic exams first (endoscopy)
Urinary tract Biliary System CT studies – before exams using barium sulfate Lower GI series Upper GI series |
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What are the two main things to consider when scheduling?
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1. Contrast media Exam type
2. Type of patient |
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When considering scheduling by patient type put these in order of priority from highest to lowest:
Diabetics Relatively healthy Adults Children Elderly or debilitated patients |
Elderly or debilitated patients
Diabetics Children Relatively healthy Adults |
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Put the exam types below in the proper scheduling order:
Colon Exams Cholegraphy & Biliary System Exam Esophagus, Stomach and Small Bowel Bronchography & Lymphography Urinary system Nuclear medicine exam |
Non-contrast Exam
Nuclear Medicine Exam Urinary System Cholegraphy & Biliary System Exams Colon Exams Esophagus, Stomach and Small Bowel Bronchography & Lymphography |
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