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Confusion about CT scan with contrast

Discussion in 'Duodenal Switch' started by brooklyngirl, Jul 2, 2014.

  1.  
    brooklyngirl

    brooklyngirl Yankee gone south

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    Hey guys!
    So since the beginning, I've read that if we are ever experiencing abdominal pain and go to the ER that we have to demand a CT scan with IV contrast. I understand that drinking the liquid will not show a potential obstruction in the bilio-pancreatic limb since food and liquids don't pass through that section. What I don't understand is how exactly an IV contrast will show an obstruction? Doesn't the contrast go through the blood vessels? Will it show the lack of blood flow to part of the biliopancreatic limb if there's an obstruction or is it something else?

    And before anyone jumps down my throat, I'm not experiencing any pain, I saw a thread on another site that was upsetting and just got me thinking that I don't 100% understand how it works.
    Thanks!
     
    huneypie and newanatomy like this.
  2.  
    newanatomy

    newanatomy Well-Known Member

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    Good question, I will be waiting to read the replies!
     
  3.  
    Spiky Bugger

    Spiky Bugger Well-Known Member

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    Someone who passed a science class will have to answer the HOW part.

    But this is the WHAT TO DO part. Print it out (large), carry a copy. Drag a copy to a thumb drive. Not many places will let you use your thumb drive in their computer, but there is a chance. If you drag an iPad with you everywhere like I do, a copy there wouldn't hurt.

    Enjoy:

    http://s3.amazonaws.com/publicASMBS/ASMBS_Store/ASMBS_ER_Poster9-20-10.pdf

    @southernlady ...is there any way you can make a copy of this available on a stickie? Sticky? Whatever.
     
    kcgt and huneypie like this.
  4.  
    brooklyngirl

    brooklyngirl Yankee gone south

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    Oh wow, that's even better than the DS emergency card! Gonna print that out tomorrow :)
     
  5.  
    Spiky Bugger

    Spiky Bugger Well-Known Member

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    Here's info in the contrast:

    How does a CT scan work?
    A CT scan works similar to an x-ray. The body casts a "shadow" on film when it is exposed to the x-ray, much like when you hold a flashlight up to your hand and cast a shadow on a wall. All of the tissue that the x-ray passes through overlap on the image, making it hard to isolate different elements. A CT scan works around this limitation by capturing one narrow slice of your body at a time. Inside the CT machine, the x-ray tube circles around the patient taking pictures as it rotates. These slices can be viewed two-dimensionally or added back together to create a three-dimensional image of a body structure.

    A dye (contrast agent) may be injected into your bloodstream to enhance certain body tissues. The dye contains iodine, a substance that x-rays cannot pass through. It circulates through the blood stream and is absorbed in certain tissues, which then stand out on the scan.
     
  6.  
    southernlady

    southernlady Administrator Staff Member

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    Done!

    As to carrying a copy, a good place for that is Dropbox. And then add to Favorites so it is accessible even when no signal is available.

    I keep my medical history file like that as well as a copy of the DS emergency card
     
  7.  
    newanatomy

    newanatomy Well-Known Member

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  8.  
    Psyche

    Psyche DS - August 6, 2009

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    Saved and printed. Thank you! I have appointments at the VA tomorrow and none of the docs I am seeing have a clue about the DS.
     

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