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Would High Values In Class 3 And Class 4 Blood Tests Be Classified As Allergic?

Posted on Thu, 3 Oct 2019

Question: My son is trying to go in the Marine corps like myself. At 9yrs old he got hit by multiple yellow jackets and had a reaction. He's 20 and none since. 2 yrs ago got stung by a wasp. He's had no problems. Swelling was down in a matter of 2 hours. I recently paid for a blood test. One class 3, the rest class 4. The class fours were 3.5, 5.5 ,but 18.5 on wasp.
1) is he classified being allergic?
2) worried about the test dating abnormal.
3) at what score would you need a EpiPen.

Answered by Dr. Shoaib Khan (2 hours later)

Brief Answer:
Above 0.71 is considered positive; above 17.51 considered strongly positive

Detailed Answer:
Hello and welcome.

Thank you for writing to us.

I have gone through your query with diligence and would like you to know that I am here to help. I should let you know that anything above the value of 0.71 is considered positive, but is a level which is not considered serious (meaning no Epipen should be required); but a level of above 17.51 is considered strongly positive. So in response to your queries:

1. Yes he sure is

2. Test results can be reliable, but you can repeat the same tests from another center if at all you wish to reconfirm (Hope I understood this second question accurately, if not, please do write back and I shall be happy to answer your query)

3. Anything above 17.51 which is considered strongly positive will require the individual to keep an Epipen with them at all times.

I hope I have answered your queries in a manner best understood by you. Please feel free to write back to me for any further clarifications, I am always here to help.

Best wishes.

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Above answer was peer-reviewed by : Dr. Arnab Banerjee