Successful Management of Insulin Allergy and Autoimmune Polyendocrine Syndrome Type 4 with Desensitization Therapy and Glucocorticoid Treatment: A Case Report and Review of the Literature

Table 3

Complementary laboratory workup.

	Results	Reference values
Immunoglobulin E (IgE)	140.60 IU/mL	0–150 IU/mL
Immunoglobulin A (IgA)	1 g/L	0.60–3.09 g/liter
Immunoglobulin M (IgM)	245 mg/dL	40–250 mg/dL
Immunoglobulin G (IgG)	1529 mg/dL	710–1520 mg/dL
Fasting C peptide	0.14 ng/mL	0.9–7.1 ng/mL
Cortisol (AM)	42.5	30–150 ng/mL
Free triiodothyronine (FT3)	1.9 pg/mL	1.4–4.2 pg/mL
Free thyroxine (FT4)	1.1	0.89–1.76 ng/mL
Thyroid stimulating hormone (TSH)	0.945 μIU/mL	0.3–4.00 mUI/mL
Anti-thyroglobulin antibody	7.0 IU/mL	<10 IU/mL
Anti-thyroperoxidase antibody	10.1 IU/mL	<30 IU/mL
Parietal cell autoantibody	Positive
Intrinsic factor autoantibody	Positive
Anti-gliadin antibodies	Negative
Anti-transglutaminase antibodies	Negative
Anti-Saccharomyces antibodies	Negative