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Doctor insights on: Causes Of Residual Volume

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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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What causes the range in amount of ejaculation?

What causes the range in amount of ejaculation?

Lots of things: Age, hormone levels, frequency of ejaculation, scrotal tone, foreplay and many other things can contribute to the volume of the ejaculation. ...Read more

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Trivial amount of fluid around heart -causes?

Trivial amount of fluid around heart -causes?

Probably normal: The heart lies with in the pericaridal sac. This is bag formed by a fairly strong membranous tissue. There is always a small amount of fluid in the pericardium probably for lubrication. It's called pericarial fluid. This is normal. Sometimes the fluid level can increase this is called a pericaridal effusion. This can be caused by infection, heart failure, kidney disease, and trauma. ...Read more

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Is increasingly worsening tinnitus cause for concern?What are some of the causes of an increased volume or persistence of ringing?

Is increasingly worsening tinnitus cause for concern?What are some of the causes of an increased volume or persistence of ringing?

Persistent Tinnitus: Great quest. Although tinnitus is a common (typically benign) condition, it is worth mentioning any changes to a specialist. It can result from a # of diff causes (meds, vascular, neurologic) but most are idiopathic (unknown cause). Standard eval inclds a hearing test, followed by an ENT exam. History is important, so before your visit, try to write down all your sympt's & what makes better/worse. ...Read more

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What R the lasting effects of a years worth of reduced cerebral blood flow due to vasoconstriction? Does the lack of proper CBF result in cell death?

What R the lasting effects of a years worth of reduced cerebral blood flow due to vasoconstriction?
Does the lack of proper CBF result in cell death?

The long term effect: of "reduced" CBF due to TEMPORARY constriction of the vessels (as in migraine) are not really known but several studies have shown that even severe chronic migraine does not reduce flow sufficiently to damage brain cells! Hope this helps! Dr Z ...Read more

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What are causes of synovial fluid decrease?

What are causes of synovial fluid decrease?

Most pathology in---: -joints such as inflammation or internal injury causes an increase of fluid. Even in severe degenerative arthritis of the knee, when opened 4 a TKA there's always fluid present. I hope someone else will answer this who has knowledge of any condition that causes a decrease. ...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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Dehydration + symptoms from inadequate fluid intake. Level of intake that resolves symptoms causes excessive urination, leading to dehydration. Ideas?

Dehydration + symptoms from inadequate fluid intake. Level of intake that resolves symptoms causes excessive urination, leading to dehydration. Ideas?

Dehydration: Please see your doctor who will take your medical history, examine you, and order labs. It is important to find out what is contained in a 24 hour urine collection as well as blood work. If there are problems they can be resolved. ...Read more

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Can hyperventilation cause the loss of alrge amounts of carbon dioxide from the body?

Can hyperventilation cause the loss of alrge amounts of carbon dioxide from the body?

No: There is a feed back system at work. It is the co2 (carbon dioxide) levels in the blood that drive the breathing center in the brain. When you hyperventilate, you may decrease the co2 in the lungs which reduce some of the level in the blood which will then cause that breathing center to decrease the rate of breathing (hyperventilation). Ultimately hyperventilation can dec co2 only so much. ...Read more

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Can a Mucous Retention Cyst in the inferior aspect of the left max sinus cause unilateral ptosis? CT also shows thickening of several ethmoid air cell

Can a Mucous Retention Cyst in the inferior aspect of the left max sinus cause unilateral ptosis? CT also shows thickening of several ethmoid air cell

No: No, very unlikely. Mucous retention cysts in the sinuses are very common. The ethmoid thickening is also unlikely to cause the issue. I would look for another reason for the ptosis. ...Read more

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What are the causes / implications of eosinophil cells found in biopsy of the pericardium as a result of an effusion. 1 liter of blood was drained?

What are the causes / implications of eosinophil cells found in biopsy of the pericardium as a result of an effusion. 1 liter of blood was drained?

May be normal: Eosinophils are normal constituents of the blood and could just be from the blood that was drained. I'm quite sure that a CBC (complete blood count) was done prior to the withdrawal of blood from the pericardium. It the eosinophil count was normal then you should be fine. As is many procedures like this the physician will redo some blood tests and most likely you will have another CBC done. ...Read more

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Describe the features of a cardiac output problem.?

Describe the features of a cardiac output problem.?

Poor heart pumping: This is when the heart is unable to pump out enough blood. This can be caused by many things, including scarring of the heart after a heart attack, valve problems, infections, and other causes. ...Read more

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What increases the volume of precum?

What increases the volume of precum?

Here is ...: Cowper's glands - a pair - excrete pre-cum fluid and its volume of excretion may widely vary to reflect its size of individuals, and the degree and frequency of sexual arousal. ...Read more

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What could be the cause of frequent lack of energy?

What could be the cause of frequent lack of energy?

Lack of energy: There are many possible causes for low energy including depression, hypothyroidism, hyperthyroidism, anemia of various causes including nutritional deficiency, low testosterone levels, heart or lung diseases, sleep apnea, medication side effects, infectious diseases (hiv, hepatitis, etc), or even cancer. So please go see a doctor to help you sort things out. ...Read more

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What causes buildup of calcium and tissue behind the bladder?

What causes buildup of calcium and tissue behind the bladder?

Residual urine: This may occur if the urine is not completely emptied after micturation. This is called residual urine--it never leaves. The most common reasons are obstruction--an enlarged prostate, urethral stricture, or low bladder voiding pressures due to neurological or other diseases. Diabetes, for example can lead to poor bladder emptying. There may also have been prior infections or surgery. ...Read more

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Normal aging causes loss of hair cells in the what?

Normal aging causes loss of hair cells in the what?

Ear: In the ear there are cells called hair cells that help you here. As you get older you're hearing does decline. Loud music and loud noises will help your hearing decline at a faster rate than is normal. If you live or work where there are a lot of loud noises you might want to use earplugs. ...Read more

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Mr resultsi: opacification of the left petrous apex is present without associated restricted diffusion or enhancement. Possible cause?

Mr resultsi: opacification of the left petrous apex is present without associated restricted diffusion or enhancement. Possible cause?

Petrous apex: Could also be a cholesterol granuloma. These lesions, if asymptomatic, usually just need to be monitored with MRI to check for any changes in size. ...Read more

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