07/01/2010
...Affected by use of antihistamines, false positives are noted, potential risk of anaphylactic reactions, not ideal for those with extensive eczema, trained professional must administer.2 Total Serum IgE (RAST or ELISA) – Sample of blood is taken to measure IgE amounts. Advantages: More comfortable than skin tests, no risk of anaphylaxis, unaffected by medication use. Disadvantages: Tests results delayed, requires large volume of blood for multiple tests which may be harder for younger children, high...