What are the most common causes of acute kidney injury?

Generally speaking, there is no single most common cause of acute kidney injury. Causes of acute kidney injury may include drug-induced kidney damage, renal vein thrombosis, urinary tract obstruction, acute tubular necrosis, cardiogenic shock, and others. If any of the above conditions occur, it is recommended to seek timely medical treatment. Specific analyses are as follows:

1. Drug-induced kidney injury

Many medications and chemical substances are nephrotoxic, such as nonsteroidal anti-inflammatory drugs (NSAIDs), aminoglycoside antibiotics, and radiographic contrast agents. These can reduce glomerular filtration rate, damage renal tubules, or cause interstitial nephritis through various mechanisms, ultimately leading to acute kidney injury. Once drug-induced kidney injury is suspected, the potential offending medication should be discontinued immediately under medical guidance.

2. Renal vein thrombosis

Renal vein thrombosis is primarily associated with endothelial injury, slowed blood flow, and a hypercoagulable state. It blocks venous return from the kidneys, resulting in impaired kidney function. Symptoms may include hypertension, edema, and hematuria. Patients can be treated under medical supervision with medications such as dipyridamole for injection, enteric-coated aspirin tablets, and warfarin sodium tablets.

3. Urinary tract obstruction

Urinary tract obstruction can result from causes such as kidney stones or bacterial infections, leading to increased pressure in the renal pelvis, impairing glomerular filtration and tubular function, and causing parenchymal kidney damage. Common accompanying symptoms include flank pain, abdominal pain, hematuria, and difficulty urinating. Treatment should follow medical advice and may include medications such as tamsulosin hydrochloride sustained-release capsules, furosemide injection, and nifedipine tablets.

4. Acute tubular necrosis

Acute tubular necrosis can be caused by factors such as infection or heavy metal poisoning, leading to disturbances in water and electrolyte metabolism and reduced urine-concentrating ability. Symptoms such as oliguria or anuria may also occur. Patients should follow medical instructions and use medications such as furosemide injection, bumetanide injection, and cefixime granules for treatment.

5. Cardiogenic shock

Cardiogenic shock can be triggered by excessive physical exertion, arrhythmias, or other causes. A decline in cardiac pumping function leads to inadequate perfusion of organs throughout the body. The kidneys, being highly perfused organs, are among the first affected, potentially resulting in acute kidney injury. Symptoms may include dyspnea, pulmonary edema, palpitations, and chest pain. Treatment should follow medical recommendations and may include medications such as deslanoside injection, dopamine hydrochloride injection, and dextran 70 and sodium chloride injection.

In daily life, attention should be paid to rational medication use, avoiding prolonged sitting, maintaining healthy lifestyle habits, and avoiding strenuous exercise and emotional fluctuations. These measures can effectively reduce the risk of acute kidney injury.