Metabolic alkalosis is seen in-

Mineralocoicoid excess increases net acid excretion and may result in metabolic alkalosis, which may be worsened by associated K+ deficiency. ECFV expansion from salt retention causes hypeension. The kaliuresis persists because of mineralocoicoid excess and distal Na+ absorption causing enhanced K+ excretion, continued K+ depletion with polydipsia, inability to concentrate the urine, and polyuria.