Mineralocorticoid before glucocorticoid deficiency in a dog with primary hypoadrenocorticism and hypothyroidism.

Plain-English summary

A dog was diagnosed with a rare form of Addison's disease, which is a condition where the body doesn't produce enough hormones from the adrenal glands. Initially, tests showed normal cortisol levels, but later tests revealed low levels of another hormone called aldosterone. The dog was given mineralocorticoids (hormones that help balance electrolytes) which quickly improved its electrolyte levels and made it feel a bit better. However, six weeks later, the dog started having issues with cortisol production as well. The dog also had an underactive thyroid, which is another health concern. Overall, the treatment for the low aldosterone worked temporarily, but the dog later developed another hormone deficiency.