How can I insist on special tests, i.E. Blood tests, tests for food allergies?

Offer to pay. Laboratory as well as radiological testing is one of the most expensive things we do in medicine. Insurance companies have contrived to reduce payments to physicians to amounts they paid 20-30 years ago. A medical opinion by a credentialed, board-certified specialist is a bargain. See an allergist. But if you must have that special test for your reassurance offer to pay for it out-of-pocket.
Just ask. Keep in mind however, that blood testing for food allergies can sometimes overestimate allergic reactivity. Thus, skin testing is usually the preferred method. Talk to your allergist about which method would be best for you.

Related Questions

Are blood tests for food allergies reliable? I'm prone to med allergies, want to check foods, too. Already know abt scratch test; curious abt blood.

Not enough info. You are asking the wrong question. ALL tests for food allergies are unreliable. The question needs to be related directly to your PRECISE symptoms. "Prone to med allergies" has no meaning in the absence of any account of details. Read more...
Mgt. I would suggest a food allergy evaluation by virtual appointment. Tests may be ordered if indicated. Read more...

How accurate are food allergy blood tests? Do they generally detect then well?

Not very accurate. There are no double blind studies to show accuracy. The best test is feeding test where a food is eliminated for about 1 week and then reintroduced to see if it causes symptoms. Never test a food that has or you may suspect that it may be a cause for anaphylactic or severe reaction including angioedema. . Read more...

4 yr son. Had respirtory&food allergy blood tests. Results only very low cows milk allergen. Cld it cause stuffy nose&snoring? Adenoids&tonsils remvd 2015

Milk allergy. generally food allergies are outgrown by the time the child is 2 yrs old if your child is still allegic even if mild you should avoid milk he should be fully tested to see if there are other allergies if not he can have congestion and wheezing. Read more...