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Questions and Answers
Gadolinium and Iron are types of contrast media used specifically for MRI procedures.
Gadolinium and Iron are types of contrast media used specifically for MRI procedures.
True
Contrast types are solely determined by the chemical composition of the substances used.
Contrast types are solely determined by the chemical composition of the substances used.
False
Low osmolar contrast media (LOCM) pose a higher risk than high osmolar contrast media (HOCM).
Low osmolar contrast media (LOCM) pose a higher risk than high osmolar contrast media (HOCM).
False
A history of previous reaction to contrast media does not affect the decision to use iodinated contrast.
A history of previous reaction to contrast media does not affect the decision to use iodinated contrast.
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Barium Sulfate is used as an ultrasound agent for imaging.
Barium Sulfate is used as an ultrasound agent for imaging.
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Chemical peritonitis is a known complication of Barium.
Chemical peritonitis is a known complication of Barium.
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Pulmonary embolism is a complication that only arises from the use of Gastrographin.
Pulmonary embolism is a complication that only arises from the use of Gastrographin.
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Gastrographin is indicated for conditions such as meconium ileus.
Gastrographin is indicated for conditions such as meconium ileus.
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Hypovolemia can occur as a complication of using Gastrographin, especially in adults.
Hypovolemia can occur as a complication of using Gastrographin, especially in adults.
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Both Barium and Gastrographin can lead to pulmonary complications.
Both Barium and Gastrographin can lead to pulmonary complications.
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Elevated serum creatinine is a factor that predisposes individuals to nephrotoxicity.
Elevated serum creatinine is a factor that predisposes individuals to nephrotoxicity.
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The Barium Swallow is used to examine the large bowel.
The Barium Swallow is used to examine the large bowel.
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Diabetes mellitus combined with soy is considered a predisposing factor for nephrotoxicity.
Diabetes mellitus combined with soy is considered a predisposing factor for nephrotoxicity.
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Ultrasound is one of the methods for imaging the gastrointestinal tract.
Ultrasound is one of the methods for imaging the gastrointestinal tract.
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Very small doses of contrast medium increase the risk of nephrotoxicity.
Very small doses of contrast medium increase the risk of nephrotoxicity.
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Barium Swallow is primarily utilized for evaluating pathology of the stomach and intestines.
Barium Swallow is primarily utilized for evaluating pathology of the stomach and intestines.
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An advantage of Barium Swallow is its ability to provide excellent mucosal coating.
An advantage of Barium Swallow is its ability to provide excellent mucosal coating.
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Pain is not considered an indication for performing a Barium Swallow.
Pain is not considered an indication for performing a Barium Swallow.
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The patient should be placed in a supine position with the head up during the Barium Swallow procedure.
The patient should be placed in a supine position with the head up during the Barium Swallow procedure.
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Barium Swallow is an expensive procedure that should only be performed in specialized centers.
Barium Swallow is an expensive procedure that should only be performed in specialized centers.
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Anaphylactic reactions to IV contrast can include symptoms like redness and difficulty breathing.
Anaphylactic reactions to IV contrast can include symptoms like redness and difficulty breathing.
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Nephrotoxicity from IV contrast is defined by an increase in serum creatinine greater than 30%.
Nephrotoxicity from IV contrast is defined by an increase in serum creatinine greater than 30%.
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Vascular toxicity from IV contrast may result in arterial vasodilatation.
Vascular toxicity from IV contrast may result in arterial vasodilatation.
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Barium is contraindicated for all patients undergoing procedures involving oral contrast.
Barium is contraindicated for all patients undergoing procedures involving oral contrast.
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Gastrografin is recommended for patients with a tracheo-esophageal fistula.
Gastrografin is recommended for patients with a tracheo-esophageal fistula.
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The double contrast method is primarily used to demonstrate gross gastric pathology.
The double contrast method is primarily used to demonstrate gross gastric pathology.
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Patients are required to fast for at least 8 hours before the barium meal exam.
Patients are required to fast for at least 8 hours before the barium meal exam.
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Rolling onto the right side and completing a full circle helps to coat the gastric mucosa with barium.
Rolling onto the right side and completing a full circle helps to coat the gastric mucosa with barium.
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Single contrast methods are preferred for demonstrating finer mucosal patterns.
Single contrast methods are preferred for demonstrating finer mucosal patterns.
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The patient must be positioned supine and slightly on their right side while drinking the barium.
The patient must be positioned supine and slightly on their right side while drinking the barium.
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The appropriate patient position for imaging the Antrum is prone.
The appropriate patient position for imaging the Antrum is prone.
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The X-ray view for visualizing the Fundus of the digestive system is LAO.
The X-ray view for visualizing the Fundus of the digestive system is LAO.
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Spot views of the cap require a left lateral patient position.
Spot views of the cap require a left lateral patient position.
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The lesser curve is imaged using an RAO view while the patient is supine.
The lesser curve is imaged using an RAO view while the patient is supine.
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To visualize the Duodenal Loop, the patient must be in a prone position.
To visualize the Duodenal Loop, the patient must be in a prone position.
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The Barium Follow Through procedure involves the use of an NG tube to facilitate imaging of the small bowel.
The Barium Follow Through procedure involves the use of an NG tube to facilitate imaging of the small bowel.
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Normal small bowel transit time is typically between 60-90 minutes.
Normal small bowel transit time is typically between 60-90 minutes.
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The Barium Follow Through is primarily indicated for assessing conditions such as gastrointestinal bleeding and chronic constipation.
The Barium Follow Through is primarily indicated for assessing conditions such as gastrointestinal bleeding and chronic constipation.
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Barium molecules in the Barium Follow Through process readily flocculate, allowing for better imaging.
Barium molecules in the Barium Follow Through process readily flocculate, allowing for better imaging.
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The Barium Follow Through procedure does not involve taking spot views of the terminal ileum.
The Barium Follow Through procedure does not involve taking spot views of the terminal ileum.
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A double contrast barium enema involves using only a liquid barium solution without any air.
A double contrast barium enema involves using only a liquid barium solution without any air.
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Toxic megacolon is considered an absolute contraindication for performing a barium enema.
Toxic megacolon is considered an absolute contraindication for performing a barium enema.
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Transient bacteremia is a potential complication of a barium enema procedure.
Transient bacteremia is a potential complication of a barium enema procedure.
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The patient is positioned on their right side during a barium enema procedure.
The patient is positioned on their right side during a barium enema procedure.
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Obstruction is not listed as an indication for performing a barium enema.
Obstruction is not listed as an indication for performing a barium enema.
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The patient is positioned in a left lateral recumbent position before rolling onto their stomach for the RAO Sigmoid procedure.
The patient is positioned in a left lateral recumbent position before rolling onto their stomach for the RAO Sigmoid procedure.
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During the barium enema procedure, the anterior-posterior (AP) view is taken only after the sigmoid is filled with barium.
During the barium enema procedure, the anterior-posterior (AP) view is taken only after the sigmoid is filled with barium.
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In the LPO Sigmoid positioning, the patient is turned from the left posterior oblique position to a supine position after barium is filled.
In the LPO Sigmoid positioning, the patient is turned from the left posterior oblique position to a supine position after barium is filled.
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The patient must be insufflated to expand the transverse colon during the left lateral rectum procedure.
The patient must be insufflated to expand the transverse colon during the left lateral rectum procedure.
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Barium enema procedures involve the use of both lateral and anterior-posterior views to capture images of the colon.
Barium enema procedures involve the use of both lateral and anterior-posterior views to capture images of the colon.
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Study Notes
Contrast Media
- Contrast media are diagnostic radio-opaque substances of high density used to improve the resolution of image modality
- Types of contrast are developed depending on the route of administration and the examined anatomical structure
- Oral route CM: Barium Sulfate and Gastrografin
- Intravenous CM: High osmolar/Low osmolar
- MRI agents contain Gadolinium/Iron
- Ultrasound agents: albumin
Contrast Media- Related Considerations
- The low osmolar contrast media is 5-10 times safer than the high osmolar (HOCM)
- Contraindications of iodinated contrast media
- History of previous reaction to contrast
- Renal failure
- Uncontrolled asthma
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Description
This quiz covers various contrast media types used in MRI and ultrasound imaging, including Gadolinium, Iron, Barium, and Gastrographin. It addresses their chemical characteristics, associated risks, and potential complications during procedures. Test your knowledge on how these agents impact patient safety and imaging effectiveness.
