Excessive sodium: High urinary levels of sodium result in increased levels of calcium. Certain defects in the kidney tubules transport system, which cause imbalances in sodium and phosphate, can lead to high calcium levels in the urine. A diet high in salt can also produce this effect.
Some of the common causes of Decreased cardiac output may include: 1  Mitral regurgitation. 2  Azotemia. 3  Hypotension. Cardiac tamponade.  Restrictive 1  cardiomyopathy. more causes...Â».
Cardiac Output. Cardiac output is the amount of blood your heart pumps out in one minute. It is regulated by the amount of blood your heart pumps out in one contraction, or stroke volume, and the number of times your heart beats in one minute, or your heart rate.Cardiac output increases as a short-term and a long-term effect of regular aerobic exercise.Initially, cardiac output increases due to an increase in your heart rate. Then, as your aerobic fitness improves, cardiac output increases due to an increase in stroke volume and a decrease in heart rate.ardiac output increases as a short-term and a long-term effect of regular aerobic exercise. Initially, cardiac output increases due to an increase in your heart rate.