Does fluorescein contain shellfish?

However, the commonly used Fluorescein sodium dye has no known cross reactivity with shellfish.

Can you be allergic to fluorescein?

Background: Adverse reactions following intravenous sodium fluorescein are very unusual and their mechanism is still uncertain. We report the case of a patient who suffered an adverse reaction during a fluorescein ocular angiography. Positive allergy tests to fluorescein suggest an IgE-mediated mechanism.

Does fluorescein contain iodine?

Fluorescein is a relatively safe dye. As with any injected medicine, there is a small risk of an allergic reaction. However, unlike the dye used for CT scans, heart angiograms and kidney studies, fluorescein dye contains no iodine.

Can you desensitize a shellfish allergy?

Oral immunotherapy is a desensitization process that involves building tolerance to an allergen. Allergy sufferers gradually consume small amounts of the problem food until their immune system stops overreacting to its presence. Oral immunotherapy is not commonly used for shellfish allergies.

Are there any adverse reactions to shellfish angiography?

The percentage of reactions was 1.8% for patients who had previous angiography without ever having an adverse reaction. An extensive literature search has not revealed any incident of Fluorescein hypersensitivity in the patients with shellfish allergy.

Why is fundus fluorescein not performed for shellfish allergy?

Fundus Fluorescein angiography was not performed at referring hospital because of a known history of shellfish allergy. The patient had anaphylactic shock after eating shellfish a few years ago. There was no history of allergic reactions to iodine, dyes, or other medicines. Her visual acuity was 6/4 in the right eye and 6/18 in the left.

Are there any adverse reactions to fluorescein ocular angiography?

Background: Adverse reactions following intravenous sodium fluorescein are very unusual and their mechanism is still uncertain. We report the case of a patient who suffered an adverse reaction during a fluorescein ocular angiography. Positive allergy tests to fluorescein suggest an IgE-mediated mechanism.

Which is a contraindication for fundus fluorescein angiography?

Shellfish allergy: a contraindication for fundus fluorescein angiography; misconception or reality. Shellfish allergy is sometimes wrongly considered a contraindication to Fundus Fluorescein Angiography (FFA). We report a case of a patient with shellfish allergy in which this misconception led to delay in angiogram.