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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Why Do I Require A Cat Scan Test Again?

I had a cat scan a couple of days ago with and without contrast and the dept where I had it done called to tell me I need to come back and have a repeat on the cats can without contrast because they didn t do that test on without. Why do they have to repeat the test when they took test for about fifteen minutes before they injected the contrast into my IV, can t they tell and isn t the test with contrast enough. Its on my bladder kidneys abdomen and chest. Why do they need the repeat as I don t understand. Also I had lying cancer three years ago.
Mon, 14 Apr 2014
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Radiologist,  's  Response
Hi,
Thanks for writing in.

Sometimes it is important to do completely plain CAT scan of abdomen. Usually while doing a CAT scan of abdomen (even without IV contrast) certain areas may be masked by the intake of oral contrast. This may lead to doubts and therefore you might have been asked to go back for a complete plain CAT scan of abdomen. The possibilities may be to rule out calcifications in your pancreas or small stones in your kidneys and ureter.
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Why Do I Require A Cat Scan Test Again?

Hi, Thanks for writing in. Sometimes it is important to do completely plain CAT scan of abdomen. Usually while doing a CAT scan of abdomen (even without IV contrast) certain areas may be masked by the intake of oral contrast. This may lead to doubts and therefore you might have been asked to go back for a complete plain CAT scan of abdomen. The possibilities may be to rule out calcifications in your pancreas or small stones in your kidneys and ureter.