Table 1.

Differential diagnosis of the neonate.

Pathogeny	Diagnosis	The neonate
Excessive potassium intake	Intravenous infusion a large amount of potassium liquid	No
Renal potassium depletion disorder	Renal failure	No
	Hypovolemia: shock or dehydration	No
	Adrenocortical insufficiency: adrenal hemorrhage, adrenal hypoplasia, etc.	No
	Congenital adrenal hyperplasia	No
	Potassium retention diuretics	No
	Pseudohypoaldosteronism	Highly suspicious