<prompt> All of the following are seen in persisting vomitting EXCEPT -HypokalemiaDecreased K in urineElevated pH of bloodMetabolic alkalosis  <response>: Presistant vomitting causes loss of hydrochloric acid, K Na ions and body fluids.Loss of HCl leads to metabolic alkalosis.Loss of K leads to hypokalemia which further increases the pH of blood intracellular K ions come out in the ECF by exchanging with H ions of ECF.Hypokalemia should lead to decreased K in urine but this does not happen -Low Na and hypovolemia would lead to increased aldosterone secretion which would increase the reabsorption of Na ions in the distal renal tubular in exchange of K ions. Thus K ions excretion in urine is increased despite hypokalemia. 