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My dad is at the end of stage 4 cancer , and 4 heart valves are 70-90% blocked what does that mean

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10y ago

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If your heating is on but your radiator isn't getting hot, it is most likely blocked. This could be due to air bubbles trapper in the radiator, in which case you will have to 'bleed' it'. If you open up the control and the shield valves, that can help to remove a blockage . Otherwise, you will have to get it taken apart and the blockage cleared by a qaulified professional.


What happens when the AV valves are Ventricular contraction?

the valves close


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Make sure it is not the valves, a valve(s) may have been put in backwards. Disassemble the instrument and use air pressure to locate the blockage. Use a wooden stick and air pressure to push blockage out. If this does not work, let the part sit in hot water to help free the blockage. If this does not work, either have a pro look at it or have someone you trust look at it (for a different perspective).


When valves in the heart or blood vessels fail to function?

When there is a problem in blood flow there is the risk of cellular death. In the heart, this complication can be fatal, however, this may not be as problematic in the rest of the body depending on the size or the artery blocked. When there is a problem in the blood flow of the heart, which is supplied by the coronary arteries, the myocytes of the heart can die. If a smaller artery in heart is blocked, this cell death can even go unnoticed, but will lead to the fibrosis of the heart tissue, not only making it less compliant, but potentially causing problems in the way the heart functions such as re-entry, which can lead to arrhythmias. In the rest of the body, the blockage of a major vessel can be a big problem. However, if a small blood vessel is blocked the body may have collateral circuits to continue blood supply to tissue. An example of this is the internal thoracic arterty supplying posterior intercostal muscles through the anterior intercostal arteries if the posterior intercostal arteries become blocked. So, blockage of blood vessels can lead to some big problems, especially in the heart; however, the body does have ways of supplying blood to tissues if they become blocked.


What happens to A-V valves during ventricular contraction?

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