If not diagnosed at birth, a newborn with 21-hydroxylase (21-OH) deficiency and salt wasting will develop which of the following problems by days 10 to 14 of life?

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21-hydroxylase (21-OH) deficiency is a form of congenital adrenal hyperplasia that can lead to adrenal crisis due to cortisol and aldosterone deficiency. This can manifest as vomiting, dehydration, electrolyte imbalances, and hypotension, potentially progressing to shock if untreated.

If Not Diagnosed at Birth, a Newborn with 21-Hydroxylase (21-OH)