What are the differential diagnoses given for Mila's metabolic abnormalities?

• A. Addison's disease and acute kidney injury
• B. Hypothyroidism and liver failure
• C. Diabetes mellitus and pancreatitis
• D. Hyperkalemia due to dehydration

Answer: (A)

Metabolic abnormalities that involve electrolyte disturbances and acid-base balance point toward problems with both adrenal function and kidney function. Addison’s disease (adrenal insufficiency) disrupts aldosterone and cortisol, leading to sodium loss, potassium retention, dehydration, and often metabolic acidosis or hypoglycemia. Acute kidney injury impairs the kidneys’ ability to excrete acids and potassium, causing metabolic acidosis and hyperkalemia, with rising waste products like BUN and creatinine. Together, these two conditions explain a pattern of electrolyte and acid-base derangements that fit Mila’s metabolic abnormalities.

The other pairings don’t alignment as well with a broad metabolic disturbance pattern: hypothyroidism and liver failure can cause metabolic changes but not the same characteristic electrolyte/acid-base profile as promptly or directly; diabetes mellitus and pancreatitis center more on glucose dysregulation and digestive enzyme issues rather than the common electrolyte/acid-base picture; dehydration-driven hyperkalemia is a single mechanism rather than a duo that collectively accounts for the observed metabolic abnormalities.