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Everything you need to know about Computed Tomography (CT) & CT Scanning


Unique Clinical Scenarios

question1. The patient has sickle cell disease. Can they get IV contrast?
question2. The patient has multiple myeloma. Can they get IV contrast material?
question3. If a patient has thyroid disease is iodinated contrast contraindicated?
question4. If a patient has thyroid cancer is iodinated contrast contraindicated?
question5. If a patient has myathenia gravis should iodinated contrast be used for a chest CT?
question

Recent articles suggest that it may exacerbate myasthenic symptoms so it must be used with caution.

"Intravenous administration of low-osmolality contrast material is significantly associated with exacerbation of myasthenia gravis-related symptoms. Exacerbations most commonly manifest as new or progressive acute respiratory comprimise."

Effect of Intravenous Low-Osmolality Iodinated Contrast Media on Patients with Myasthenia Gravis
Somashekar CK et al.
Radiology 2013; 267:727-734


"Intravenous administration of low-osmolality contrast material should be considered among the list of medications known to exacerbate myasthenic symptoms, with an estimated risk of acute symptoms deterioration of approximately 5-6% above baseline."

Effect of Intravenous Low-Osmolality Iodinated Contrast Media on Patients with Myasthenia Gravis
Somashekar CK et al.
Radiology 2013; 267:727-734

question6. If a patient is on glucophage (or other oral diabetes medications) is there an issue with iodinated contrast agents? What is the current rule with oral diabetes drugs? (glucophage)
question7. What patients take glucophage (metformin)?
question8. What is the danger of Metformin and iodinated contrast?
question9. What are the other names for metformin?
question10. What are the current guidelines for patients taking metformin and needing a contrast study?
question11. Is there any problem with using iodinated contrast for CT if a patient is on the cardiac drug Amiodarone?
question12. Can you use iodinated contrast on a patient with suspected or known pheochromocytoma?
question13. If a patient is nursing can she receive IV contrast?
question14. What is our policy for scanning a pregnant patient?
question15. If a CT is done on a pregnant patient and iodinated contrast is used can that affect the fetus?
question16. Who should get baseline serum creatinine levels before CT?

 

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