Modified Quantitative Testing
When both skin prick allergy testing and intradermal testing are combined, the result is referred to as modified quantitative testing. By combining both types of tests, doctors can arrive at a more accurate list of allergens that a patient has shown positive reactions for.
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To perform 40 tests on the skin and arms can take upwards of an hour, sometimes slightly longer. The small scratches or pricks are covered with specific allergens to determine if a reaction is present.
With intradermal testing, the allergen is placed just under the skin using a TB needle. When positive results are present, there is no need to test further. If the test is inconclusive or negative, the doctor may choose to use the intradermal test as a failsafe.
Some allergens may not cause a surface reaction, but when exposed to underlying tissues create an allergic response. This double testing ensures that the results are accurate and the person receives exactly what they need when their allergy formulas are created. Once the formulas are created, the doctor will then determine the beginning dosage and the treatment schedule will begin.