Low total calcium (hypocalcemia). The most common cause of low total calcium is: 1  Low blood protein levels, especially a low level of albumin, which can result from liver disease or malnutrition, both of which may result from alcoholism or other illnesses.2  Low albumin is also very common in people who are acutely ill. urine calcium test may be ordered when someone has symptoms of kidney stones, such as a sharp pain in the person's side or back around the kidneys, pain that may progress to lower in the abdomen, and/or blood in the urine.
A pacemaker is a small but very sophisticated electronic device that is implanted under the skin to help regulate the heart beat. Pacemakers are used to keep a person's heart rate from going too slowly, and to help coordinate the beating of the cardiac chambers -- the atria and ventricles.
Most pacemaker batteries last for 6 to 10 years. After this, you may need to have the batteries changed. Ask your doctor how you'll know when the battery needs to be replaced or recharged. Changing the batteries involves replacing the pacemaker box with a new unit.