CASE 3: viral gastroenteritis
lead to the physical findings of volume depletion (eg, decreased skin turgor and orthostatic hypotension and tachycardia) and an elevated plasma sodium concentration. Such patients have both dehydration (ie, unreplaced insensible losses leading to hypernatremia) and salt and water loss from the diarrhea. The hormonal profile would consist of elevations of _____ and _____, and decreased _____. This scenario is most likely to occur in infants, young children, or nursing home patients with impaired mental status who are unable to express the normal intense stimulation of thirst induced by hypernatremia.