Acute kidney injury

Acute kidney injury (AKI) occurs when the kidneys suddenly lose their ability to filter waste products from the blood. As wastes and fluids build up, the body’s chemical balance can become dangerously disrupted. AKI was previously called acute kidney failure and is most common in hospitalized patients, especially those in intensive care. AKI can range from mild to severe. In serious or untreated cases, it can be life-threatening. However, when identified early and managed properly, AKI is often reversible, and many people—especially those who were previously healthy—can recover normal or near-normal kidney function. Symptoms AKI may cause: Reduced urine output Fluid buildup leading to swelling of legs, ankles or feet, and shortness of breath Fatigue and weakness Confusion or mental fog Nausea or loss of appetite Pain in the abdomen or side below the ribs Irregular heartbeat Itching Chest pain or pressure Seizures or coma in severe cases Sometimes AKI causes no noticeable symptoms and is discovered through routine blood tests. When to see a doctor Seek medical attention immediately if you have symptoms suggestive of acute kidney injury. Early diagnosis and treatment are critical to prevent serious complications.