U.S. doctors online nowAsk doctors free
United Kingdom
A 22-year-old male asked:

got asthma would premedicating prevent anaphylaxis shock from the dye on ct angiogram.

2 doctor answers4 doctors weighed in
Dr. Joseph Accurso
Radiology 29 years experience
Asthma is not a...: A usual reason for premedication for IV contrast , but appropriate premedication would significantly reduce the already very low risk. Non ionic ct contrast has a very low risk of anaphylaxis without premedication.
Dr. Paxton Daniel
Radiology 39 years experience
Rare: You have no history of contrast allergy so there is no clear cut indication for premedication. However, your history of asthma and anxiety about the procedure may increase your susceptibility and should be addressed. It is reasonable to ask your doctor for a mild sedative like valium before the test. No harm in premedication steroid/benadryl if your doctor prescribes it too. Risk remains small.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
24/7 visits
$15 per month

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
24/7 visits
$15 per month
Last updated Jun 10, 2014

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.