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».
Best Answer: Cardiac output (Q or or CO ) is the volume of blood being pumped by the heart, in particular by a left or right ventricle in the time interval of one minute- wiki Q = Stroke Volume Ã Heart rate As long as stroke volume is constant, heart rate should increase cardiac output. Think of running up the stairs, you need more oxygen carried to the cells of the body. You increase cardiac output by increasing the heart rate to get more oxygen to the cells. However, Tachycardia is increased heart rate over a longer period of time. While the heart rate is high, the ability for the ventricles to refill is reduced decreasing stroke volume, and then decreasing cardiac output as a result.