POMC and pyruvate dehydrogenase deficiency: Bonferroni posttest showed that dogs with PDH had a significantly higher concentration of serum cortisol post‐ACTH (30.9 ± 8.9 μg/dL) compared with both normal dogs (15.2 ± 2.6 μg/dL P < .0001) and dogs with SARDS (17.4 ± 4.1 μg/dL, P < .0001).