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What are the warning signs of kidney failure?

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Quick Answer

Signs and symptoms of kidney failure include nausea and vomiting, weakness, malaise, severe itching and confusion, according to eMedicineHealth. Body swelling, decreased urine output and a metallic taste in the mouth are additional symptoms. These signs and symptoms are caused by the accumulation of waste products in the blood.

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Full Answer

Acute kidney failure may be caused by damage from medications, poisons or infections, states WebMD. It may also be caused by a sudden drop in blood flow to the kidneys themselves, or by a sudden blockage that prevents urine from flowing out of the kidneys.

Chronic kidney disease occurs over time, usually as a result of other longstanding health conditions, such as high blood pressure or diabetes, notes MedlinePlus. While the symptoms are the same as in acute kidney failure, they may be so subtle that they are overlooked until severe damage has occurred.

Kidney injury and disease is more common in older adults, explains WebMD. It's also more common in people with a history of chronic illnesses such as diabetes, heart failure, high blood pressure, obesity, or existing liver or kidney disease. Serious injury or illness requiring hospitalization also increases the risk for kidney problems, especially in patients who have undergone bone marrow transplant or cardiovascular or abdominal surgery.

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