Table 2.
The investigations that the patient had, which are consistent with a diagnosis of primary autoimmune Addison's disease
| Investigation | Result | Units | Normal values |
|---|---|---|---|
| ACTH | 4850 | ng/L | <60 |
| Cortisol-SNT baseline | 112 | nmol/L | |
| Cortisol-SNT 30 min | 95 | nmol/L | |
| Cortisol-SNT 60 min | 92 | nmol/L | |
| Aldosterone | <89 | pmol/L | 140–830 |
| Plasma renin | 15.0 | nmol/L/h | 0.8–3.0 |
| Adrenal antibodies | Positive | ||
| Thyroid peroxidase antibodies | <33 | IU/mL | 60–100 |
| Anti GAD 2 antibodies | Negative | ||
| TSH | 4.0 | mU/L | 0.27–4.20 |
| Sodium | 133 | mmol/L | 132–145 |
| Potassium | 4.2 | mmol/L | 3.1–5.1 |
ACTH, adrenocorticotropic hormone; GAD, glutamic acid decarboxylase; SNT, stimulation test; TSH, thyroid-stimulating hormone.