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What Does My Allergy Patch Test Report Indicate?
Question: Area: Allergy Check.
Someone i know has an eye problem called CSR (Central Serous Reitonpathy)
They have been asked to undergo the test:
FFA(Fluorosciene) and ICG(Indocyanine green - i guess this is iodine) angiography XXXXXXX test. The XXXXXXX is inserted in blood for this test, post which eye pics are taken.
QUESTION:
How can they do a allergy test (for Fluorisciene AND ICG) before hand to determine if it is safe to undergo this test? This test is important for further investigation.
If this allergy test is not available, what is the next best thing to do? Hoping that a allergy test is possible or immunotherapy can really help in some way.
EARLIER EXPERIENCE
Following is earlier (and only) test experience with this test - couple of months ago:
A allergy patch test was done first.
FFA and ICG dyes were inserted just under skin - one for FFA other for ICG.
ICG XXXXXXX somehow seemed to be spread over couple of inches of radius.
Waited for 1 hour - there did not seem to be any adverse reaction to any of these in patch test.
Next (1 hour later),
FFA - Fluorosciene test was done (dye injected in veins) and eye pics taken.
After 10 minutes patient had light headedness, feeling of being unwell and warm sensation in all body. However all that went away in another 15 minutes. Not sure if this is normal.
No ICG test was performed. Don't know why - because they thought patient was feeling bit unwell for short while because of previous FFA test Or because ICG patch was spread out a bit under skin. Not sure.
The FFA (forearm) skin patch coloration went away in couple of days.
ICG (forearm) skin patch coloration took almost 8-9 days to go away. However no discomfort or any visible reaction.
Looking forward to your guidance in the matter.
Someone i know has an eye problem called CSR (Central Serous Reitonpathy)
They have been asked to undergo the test:
FFA(Fluorosciene) and ICG(Indocyanine green - i guess this is iodine) angiography XXXXXXX test. The XXXXXXX is inserted in blood for this test, post which eye pics are taken.
QUESTION:
How can they do a allergy test (for Fluorisciene AND ICG) before hand to determine if it is safe to undergo this test? This test is important for further investigation.
If this allergy test is not available, what is the next best thing to do? Hoping that a allergy test is possible or immunotherapy can really help in some way.
EARLIER EXPERIENCE
Following is earlier (and only) test experience with this test - couple of months ago:
A allergy patch test was done first.
FFA and ICG dyes were inserted just under skin - one for FFA other for ICG.
ICG XXXXXXX somehow seemed to be spread over couple of inches of radius.
Waited for 1 hour - there did not seem to be any adverse reaction to any of these in patch test.
Next (1 hour later),
FFA - Fluorosciene test was done (dye injected in veins) and eye pics taken.
After 10 minutes patient had light headedness, feeling of being unwell and warm sensation in all body. However all that went away in another 15 minutes. Not sure if this is normal.
No ICG test was performed. Don't know why - because they thought patient was feeling bit unwell for short while because of previous FFA test Or because ICG patch was spread out a bit under skin. Not sure.
The FFA (forearm) skin patch coloration went away in couple of days.
ICG (forearm) skin patch coloration took almost 8-9 days to go away. However no discomfort or any visible reaction.
Looking forward to your guidance in the matter.
Brief Answer:
No need to worry much.
Detailed Answer:
Thanks for your question on HealthcareMagic.
I can understand your concern.
First of all, patch tests are the only way to identify the allergy. This is direct allergy test. Indirect allergy tests are also available.
1. Serum IgE level.
2. ICG specific IgE and FFA specific IgE.
But these are indirect tests. Best is patch test which you already had.
Immunotherapy is for treatment of allergy. It is not for diagnosis of allergy.
And the reaction you had after FFA is normal.
No need to worry much for this.
And your previous patch test was normal. Discoloration may take 1-2 weeks for complete recovery.
So no need to worry for ICG and FFA allergy at present.
Hope I have solved your query. I will be happy to help you further.
Wish you good health.
Thanks.
No need to worry much.
Detailed Answer:
Thanks for your question on HealthcareMagic.
I can understand your concern.
First of all, patch tests are the only way to identify the allergy. This is direct allergy test. Indirect allergy tests are also available.
1. Serum IgE level.
2. ICG specific IgE and FFA specific IgE.
But these are indirect tests. Best is patch test which you already had.
Immunotherapy is for treatment of allergy. It is not for diagnosis of allergy.
And the reaction you had after FFA is normal.
No need to worry much for this.
And your previous patch test was normal. Discoloration may take 1-2 weeks for complete recovery.
So no need to worry for ICG and FFA allergy at present.
Hope I have solved your query. I will be happy to help you further.
Wish you good health.
Thanks.
Note: For further information on diet changes to reduce allergy symptoms or to boost your immunity, Ask here.
Above answer was peer-reviewed by :
Dr. Arnab Banerjee
Answered by
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