2007-11-15 12:22:21 · 3 answers · asked by Anne 5 in Health ➔ Diseases & Conditions ➔ Allergies
It really depends on the skill of the technician. A better, more accurate method and time honored, is intradermal skin testing.With the scratch test, you are working with too many variables not easily controled-was enough solution on the stylet/needle used, did it break the skin surface or not, did the cleaning fluid mix with the solution, and so on? With the intradermal skin testing, an exact amount of an exact composition of an allergen is injected within the skin and observed for an reaction.The intradermal test is more sensitive than the skin prick/scratch test and can usually provide more consistent results. Visit naturescorner.com, my website.
2007-11-16 01:57:48 · answer #1 · answered by Clyde N 3 · 0⤊ 0⤋
I don't think you will get any false positives from a scratch test, but you may get a few false negatives.
2007-11-16 14:50:00 · answer #2 · answered by pennypincher 7 · 0⤊ 0⤋
very
2007-11-15 20:53:53 · answer #3 · answered by renee k 5 · 0⤊ 0⤋