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Doctor insights on: Fluid Volume Excess In Kidney Disease

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How is decreased cardiac output caused by increased fluid volume and decreased fluid volume?

How is decreased cardiac output caused by increased fluid volume and decreased fluid volume?

Stroke volume: Cardiac output is determined by heart rate and volume of blood pumped by heart in each heartbeat (stroke volume). Increased fluid volume increases the stroke volume and therefore cardiac output. Decreased fluid volume decreases the stroke volume and therefore cardiac output. ...Read more

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Kidney (Definition)

The kidneys are paired organs that lie on either side of the vertebral column. Part of their critical functions include the excretion of urine and removal of nitrogenous wastes products from the blood. They regulate acid-base, electrolyte, fluid balance and blood pressure. Through hormonal signals, the kidneys control the ...Read more


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How can decreased cardiac output be caused by either increased fluid volume and decreased fluid volume?

How can decreased cardiac output be caused by either increased fluid volume and decreased fluid volume?

Cardiac output: When systolic dysfunction is present, volume overloading can result in decreased stroke volume and cardiac output. In any cardiac status, decreased intravascular volume will result in decreased cardiac output. ...Read more

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Morphine helps redistribute blood volume in pulmonary edema. How? And is it causing any reabsorbtion of fluid?

Morphine helps redistribute blood volume in pulmonary edema.  How? And is it causing any reabsorbtion of fluid?

In theory it works: As a vasodilator. By increasing peripheral venous blood volume, there is less venous blood returning back to the pulmonary circulation and thereby decrease the formation of pulmonary edema. ...Read more

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Why does residual volume decrease in restrictive lung diseases?

Why does residual volume decrease in restrictive lung diseases?

Scarring: As the lungs scar and lose volume, both the vital capacity and residual lung volume decrease. That is the nature of restrictive lung disease. ...Read more

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Does drinking a lot of water slow cyst development in polycystic kidney disease patients?

Does drinking a lot of water slow cyst development in polycystic kidney disease patients?

No: Nothing has been proven to slow cyst development. There are drugs undergoing trials; octreotide, Everolimus and tolvaptan all working on different systems that are promising. Adpkd patients are told to drink fluids to decrease the risk of stone formation and utis, the kidneys are very large urine collects in larger areas with slower flow making these complications more likely. ...Read more

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What does large fluid collection with an air fluid level mean, in pelvis of male, ?

What does large fluid collection with an air fluid level mean, in pelvis of male, ?

Abscess: The only things that live in the male pelvis are: 1) bladder and 2) rectum. There should be no fluid collection outside of the bladder (normal), but with gas in it, usually represents an abscess. This usually represents a perforation or fistula from the rectum, or post-operative leak after rectal surgery. Depending on the cause, the treatment can be drainage through the rectum or open surgery ...Read more

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Why is kidney failure (which is associated with decreased gfr) associated with an increase in solute excretion per nephron?

Why is kidney failure (which is associated with decreased gfr) associated with an increase in solute excretion per nephron?

Explanation: One of the roles of the kidney is to maintain solute balance and maintain a solute gradient via the counter-current mechanism in the loop of henle. It is the manner in which we reabsorb important substances and excrete waste. When you have kidney damage, the ability to maintain this gradient is upset, and thus solute loss can occur. ...Read more

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Fluid in lungs related to liver cirrhosis?

Fluid in lungs related to liver cirrhosis?

In severe cases: When the Albumin in the blood goes down, fluid can leak all over the body including the lungs. ...Read more

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How can decreased cardiac output be caused by increased fluid volume ?

How can decreased cardiac output be caused by increased fluid volume ?

You have it reverse: Heart rate x stroke volume = cardiac output and thus if stroke volume decreases, cardiac output decreases or if heart rate decreases cardiac output decreases. ...Read more

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Which prevents water loss from the blood in kidney dialysis for urea?

Which prevents water loss from the blood in kidney dialysis for urea?

Dialysis water loss: Patients who are being dialyzed (d) lose water during their d session. The amount of fluid loss can be controlled and they need to have this fluid removed on dialysis so they do not get fluid overloaded and wind up with fluid in their lungs. To answer your question, there is water loss on d which leads to the better health of the patient. ...Read more

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What changes in blood volume, blood potassium, urine volume and urine sodium would turn on the raa system?

What changes in blood volume, blood potassium, urine volume and urine sodium would turn on the raa system?

RAAS turn ons: The renin angiotensin aldosterone system is designed to maintain blood volume. It is turned on when there are actual fluid deficits, such as vomiting or dehydration, or deficits perceived by the kidney as those patients with congestive heart failure. As a result of increased activity of the RAAS, urine volume and sodium losses by the kidney decreases. High potassium is possible, as well. ...Read more

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Do glomerulonephritis experienced decrease fluid urine output?

Do glomerulonephritis experienced decrease fluid urine output?

Not necessarily: Glomerulonephritis is a condition affecting the kidneys. Urine output need not be low. Talk to your nephrologist especially if there is a recent change in urine output. ...Read more

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How does increase amount of the carbon dioxide in the blood affect kidney and causes renal failure?

How does increase amount of the carbon dioxide in the blood affect kidney  and causes renal failure?

Carbon Dioxide : Good question. Your kidneys have many functions. One is to maintain ph balance. When your body accumulates too much carbon dioxide(co2) your kidneys work to eliminate it. Co2 makes your body more acidic. The acidity not only makes your kidneys work harder, but it also makes all body functions less efficient. Over time this can cause kidney failure. This is not a common cause of kidney failure. ...Read more

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Does fluid in the lungs be related to kidney cancer?

Does fluid in the lungs be related to kidney cancer?

Not directly: Fluid in the lungs may be related to fluid overload if the kidneys are not functioning, may be related to coincidental heart disease, or may be related to inflammation in the lung, from pneumonia or blood clot. Kidney cancer may be associated with an increased risk of blood clot which could break off and travel to the lung. If there is shortness of breath or pain in the chest, see md immediately. ...Read more

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Will small kidney stones cause an increase in urine production?

Will small kidney stones cause an increase in urine production?

Stones: No, stones do not affect urine production. However increasing your fluid intake and increasing your urine production can help prevent stones from forming and help pass stones that you may have. ...Read more

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Can increase sugar intake result in higher urine volume?

Can increase sugar intake result in higher urine volume?

It could: If you have diabetes or glucose intolerance, a high sugar intake may cause spilling of glucose into the urine. This would cause additional urine to be made. I this case it would act like a diuretic, resulting in a larger urine volume. Usually thirst accompanies this phenomenon. ...Read more

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How to reduce blood urea and creatinine in patients with limited fluid intake and diuretics?

How to reduce blood urea and creatinine in patients with limited fluid intake and diuretics?

Depends: If it is irreversible chronic kidney disease you cannot. If it is reversible then you can decrease diuretic dose and increase fluids- this should be done with the help of a doctor otherwise you will become fluid overloaded. ...Read more

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How can I reduce fluid build-up in the abdomen caused by congestive heart failure?

How can I reduce fluid build-up in the abdomen caused by congestive heart failure?

Meds/limit salt: the fluid build up is due to the weakness of the heart and subsequent salt/fluid accumuliation. the meds your doctor gives you often strengthen the heart, lessening the tendancy for accumulation. salt in the diet will cause more fluid to accumulation - avoid salt. ...Read more

Previous Kidney Disease (Definition)

Polycystic kidney disease is a kidney disorder passed down through families in which multiple cysts form on the kidneys, causing ...Read more


Dr. Tarek Naguib
2,401 doctors shared insights