Doctor insights on:
Why Would Someone Have Low Cardiac Output
Nature/ Genes: Low blood pressure and low pulse may be normal in people who always have been like that. They are of concern when they change significantly from the baseline BP or pulse. Pulses too low at any point of life (less than 40 ) are of concern. Athletes develope pulses in the 50s. Medicines may cause bradycardia in the 50s (digoxin, beta or calcium blockers (metoprolol, atenolol, diltiazem, verapamil. ...Read more
Complex: Even though the mechanisms are complex, one way to understand is that if you lose the ability to filter your blood and eliminate extra fluid from your body (one of the kidney's main functions) your heart will be burdened with pumping a lot more blood than it was intended to do and will therefore fatigue and not pump as well (same as any other muscle would if forced to work "overtime"). ...Read moreSee 1 more doctor answer
Not always related: Renal failure in and of itself is not realted to cardiac output, there are many things that can cause both renal failure and decreased cardiac output, but they are not always related. However if someone has really low cardiac output, one could develop renal failure b/c not enough blood is getting to the kidneys. ...Read moreSee 1 more doctor answer
Heart condition: This is likely a heart condition that needs to be evaluated asap. When the heart is not working efficiently or effectively, the heart may not pump as fast as it should or as strong as it should. This will limit blood flow equaling low blood pressure. This will cause less blood flow going to the brain and hence causing dizziness. ...Read more
Health: It means that you're healthy, normal, and physically fit. ...Read more
Many reasons: Decreased cardiac output can contribute to reduced kidney function. Kidney disease is often associated with heart problems that reduce cardiac output. High blood pressure and volume overload with kidney failure can also reduce heart output. It's often difficult to sort out cause and effect in these situations. ...Read more
Homeostasis: Cardiac output is regulated to meet the needs of the body. Heart rate is only one determinant of cardiac output. If heart rate goes up, cardiac output can be maintained by decreasing the amount of blood pumped by each beat by increasing the resistance against which the heart pumps, decreasing the filling of the heart, or decreasing the the contractility of the heart muscle. ...Read more
If someone goes into cardiac arrest from extremely low potassium blood level. Would the defibrillator work? Or do they need the potassium
Depends...: There are heart rhythmn disorders that do not begin with an elevated heart rate. Not all cardiac arrhythmias are due to an elevated heart rate. There are rhythmn disorders that have a normal heart rate or even a slow heart rate. A normal or slow heart rate does not rule put an arrhythmia. ...Read moreSee 2 more doctor answers
Depends: Some bradycardia can due to medicines called beta blockers, or a natural effect of good conditioning as seen in athletes. However, it can be a sign of serious heart disease impairing the electrical system of the heart. See your health care provider to evaluate the causes. ...Read moreSee 2 more doctor answers
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