An intravenous pyelogram (PIE-uh-low-gram), also called an excretory urogram, is an X-ray exam of your urinary tract. An intravenous pyelogram lets your doctor view your kidneys, your bladder and the tubes that carry urine from your kidneys to your bladder (ureters).
By Mayo Clinic Staff. Low potassium (hypokalemia) has many causes. The most common cause is excessive potassium loss in urine due to prescription water or fluid pills (diuretics). Vomiting or diarrhea or both can result in excessive potassium loss from the digestive tract. Only rarely is low potassium caused by not getting enough potassium in your diet.
Low potassium syndrome, also known as hypokalemia, is not commonly caused by poor dietary intake. Excessive loss is the most common reason that potassium levels are low. Loss of potassium may occur from both the gastrointestinal tract and from the kidney. Potassium loss from the intestines may be caused by: 1  Vomiting. 2  Diarrhea. 3  Ileostomy: In some patients who have had bowel surgery and an ileotomy formed, significant potassium loss can occur.  Villous adenoma (a type of colon polyp that can cause the colon to leak 1  potassium). Laxative  use.