What is the effect of increase in potassium in urine?

Urine potassium: The amount of urinary potassium (k) is dependent on the blood level of k. If you ingest a large k load and you have a normal k level, it is normal for you to have a high urinary k. If you have a high urinary k with a low k blood level, you are wasting k and may have somethinng wrong with your kidneys or you have a magnesium defecit. See a nephrololgoist for the reason your high urinary k level.

Depends on blood : If your serum (blood) potassium levels are low then an increase in urine potassium is a problem since the kidney should be holding onto potassium in this situation. Possible causes are hyperaldosteronism (too much aldosterone) elevated bicarbonate (sodium bicarbonate) levels, gittleman's or bartter's syndrome, or a renal tubular acidosis. Go see a kidney doctor. If levels are ok then the increase in urine k is ok.