A member asked:

I had a ct of head and neck with contrast. i was pushed under ct scan. tech said would be about three minutes but i was under it for 20 minutes.they inserted contrast and was out.is this normal?could they have left radiation on by error? why so long?

3 doctors weighed in across 2 answers

Positioning for the best possible study takes time and remains the most time consuming party of specialty exams The actual time on for the CT study using modern equipment is a few minutes per study (ie. with or without contrast). They do not "leave the machine on" for positioning and do not rush the patient out after a study.

Answered 4/29/2023

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Modern CAT scans last only a few minutes and provide minimal radiation, but there can be delays for many legitimate reasons. None of this potentially harms the patient, and excess radiation is NOT an issue. We here at HT do not have a clue why your experience lasted longer, but you could certainly ask the radiologist who interpreted your study!!

Answered 4/30/2023

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