IGHE and anaphylaxis: Baseline IgA levels were normal at 153.97 mg/dL (normal range: 70–400 mg/dL), serum tryptase levels were normal at 1.4 μg/L (normal range: < 11 μg/L) measured 2 hours after anaphylaxis, and total IgE levels were 62.6 kU/L (normal range: < 100 kU/L).