Results of Laboratory Tests As shown in previous studies, subjects undergoing SIT following Grade IV anaphylaxis exhibited higher serum tryptase levels than those who experienced Grades I–III, although this finding did not reach statistical significance ( Figure 3A ).
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Intracutaneous Skin Tests and Serum IgE Levels Cannot Predict the Grade of Anaphylaxis in Patients with Insect Venom Allergies.
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