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Doctor insights on: Why Would Someone Have Low Cardiac Output

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Why would someone have low cardiac output?

Why would someone have low cardiac output?

Congestive heart: Failure can be cause of low cardiac output. If the pump is weak and failing then cardiac out put would be low. Very slow heart rate can also result in low cardiac output. ...Read more

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Dr. Cynthia Archer
918 doctors shared insights

Cardiac Output (Definition)

Cardiac output is a measurement of the amount of blood a person's heart can pump out during a set amount of time. The measurements help doctors figure out how strong or weak ...Read more


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What happens when you have low or high cardiac output?

What happens when you have low or high cardiac output?

Fatigue: Low cardiac output will lead to fatigue and shortness of breath. High cardiac output failure caused by severe anemia or paget's disease have similar manifestation. ...Read more

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Why might someone have low heart rate and blood pressure?

Why might someone have low heart rate and blood pressure?

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

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Why would a patient in renal failure get decreased cardiac output?

Why would a patient in renal failure get decreased cardiac output?

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 more

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Why would a patient in renal failure get decreased cardiac function?

Why would a patient in renal failure get decreased cardiac function?

Other way around: Usually it is the decreased cardiac function that leads to kidney failure due to lack of blood flow. However, the two illnesses in general share many contributing factors like high blood pressure and diabetes. ...Read more

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What does it mean if I have high oxygen saturation but a low heart rate?

What does it mean if I have high oxygen saturation but a low heart rate?

See below: It means that the hemoglobin in your blood is receiving enough oxygen from your lungs to be fully loaded with oxygen molecules. Additionally, your heart, for whatever reason, is beating slowly. Often, slow heart rate is a sign of health, particularly in your age group (37). ...Read more

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Why does a patient in renal failure have decreased cardiac output?

Why does a patient in renal failure have decreased cardiac output?

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 more

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Why might someone have low blood pressure low heart rate and dizziness?

Why might someone have low blood pressure low heart rate and dizziness?

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

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Why?Would someone in renal failure have decreased cardiac output?

Why?Would someone in renal failure have decreased cardiac output?

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

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How might you have high blood pressure but a low heart rate?

How might you have high blood pressure but a low heart rate?

They aren't: necessarily related, blood pressure can be from constricted vessels even if heart output low, and they can be controlled by different blood chemicals ...Read more

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Why would someone with addison's disease have low cortisol and high potassium?

Why would someone with addison's disease have low cortisol and high potassium?

Addison's disease: Patients with addison's disease have a low cortisol level since the adrenal glands do not produce it. They have high potassium levels because their adrenal glands do not produce aldosterone, which helps the body get rid of potassium in the kidney. ...Read more

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Please explain why does tachycardia not always have an effect on cardiac output?

Please explain why does tachycardia not always have an effect on cardiac output?

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

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If someone goes into cardiac arrest from extremely low potassium blood level. Would the defibrillator work? Or do they need the potassium

If someone goes into cardiac arrest from extremely low potassium blood level. Would the defibrillator work? Or do they need the potassium

Cardiac arrest ?: Defibrillator r used in case of emergency to treat a cardiac arrest but it is important to check the reasons for the arrest and correct any lab abnormality. ...Read more

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How high would your heart rate have to be to cause cardiac arrhythmia or cardiac arrest?

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 more

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What to do if I have high heart rate, congestive heart failure?

What to do if I have high heart rate, congestive heart failure?

Heart rate: You need to be seen to determine why do you have fast heart rate. Uncontrolled heart rate can tip you to heart failure exacerbation. Make sure you go to your physician for an ekg. ...Read more

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What to do if I have high resting heart rate/ palpitations in a young girl?

What to do if I have high resting heart rate/ palpitations in a young girl?

Check diet: Many causes of increased heart rate/palptations. Make sure that no foods that contain caffeine, or diet supplements are taken. This could also be a hormonal imbalance. Blood testing can help if the cause is not obvious ...Read more

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Is bradycardia( low heart rate) bad, if you never feel faint or any other problem?

Is bradycardia( low heart rate) bad, if you never feel faint or any other problem?

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 more

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Dr. William Singer
5 doctors shared insights

Cardiac (Definition)

Cardiac translates literally to "heart, " and any place the term is seen, such ...Read more