An infant with classic salt-wasting congenital adrenal hyperplasia is admitted with vomiting and lethargy.Which findings should the nurse expect? Select all that apply.

A. Hyponatremia: Salt-wasting CAH leads to aldosterone deficiency, impairing sodium reabsorption in the kidneys. This results in excessive sodium loss in urine, causing hyponatremia, which contributes to dehydration and weakness. B. Hyperkalemia: Without sufficient aldosterone, potassium excretion is reduced, leading to potassium retention. This electrolyte imbalance can progress to life-threatening arrhythmias if not promptly corrected. C. Hypertension: Aldosterone deficiency causes sodium and water loss, not retention, so blood volume decreases instead of increasing. This typically results in hypotension rather than hypertension. D. Hypernatremia: In salt-wasting CAH, sodium is lost excessively in urine, so hypernatremia does not occur. Instead, serum sodium levels fall, leading to hyponatremia. E. Hypotension: The combination of sodium loss, water depletion, and low cortisol contributes to hypovolemia. This decreases blood pressure, leading to hypotension, which is a key clinical feature of adrenal crisis.