Zusammenfassung der Ressource
Contrast
- Positive
Contrast
- Barium
Sulfate
- Nontoxic
- Most frequently chosen contrast medium or radiologic examination of the GI tract
- Iodinated Preparations
- May be a greater danger to the
patient
- Negative
Contrast
- Carbon
Dioxide
- Air Embolus - injecting air into the bloodstream could
occur
- Fasting
- Must be done in the morning
- Diabetic, elderly, pediatric
- Barium
- Upper and lower GI systems with barium
- Lower is performed first as barium clears quickly from the lower bowel
- Barium is denser and will obscure the iodinated contrast
- Iodinated contrast must be performed prior to barium studies
- No Contrast
- All examinations that do not require contrast should be schedule first
- Ultrasound and nuclear medicine procedures are scheduled first