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Pyelonephritis
How to diagnose pyelonephritis?
For the diagnosis of pyelonephritis, it is first necessary to confirm the diagnosis. Generally, patients should first undergo routine urine tests. In these tests, the presence of white blood cells and positive nitrites, along with clinical symptoms such as back pain, blood in urine, and fever are common. A routine blood test often shows elevated white blood cells and C-reactive protein. These indicators together suggest the presence of pyelonephritis. Furthermore, a culture of a clean-catch midstream urine sample can be done. If the bacteria grow to a certain quantity, it can also help in confirming the diagnosis of pyelonephritis. Additionally, to assess complications associated with pyelonephritis, it is necessary to perform blood tests for kidney function and an ultrasound of the urinary system to rule out conditions such as acute renal failure, renal papillary necrosis, and perinephric abscess, among others.
The difference between pyelonephritis and nephritis
Pyelonephritis and nephritis are two completely different concepts. Pyelonephritis is actually a bacterial inflammation, usually caused by bacteria at the urethral opening ascending into the urinary system and causing inflammation in areas like the renal pelvis and calyces. Patients may experience symptoms such as fever, hematuria, and back pain. In severe cases, it can cause necrosis of the renal papillae, leading to acute renal failure. Some patients may also develop perinephric abscesses, which are caused by bacterial infections. Nephritis, on the other hand, refers to inflammation within the glomeruli. This type of inflammation does not involve bacteria and is related to disorders in the body’s immune function. The disordered immune response is aggressive, attacking the glomerular filtration barrier, leading to proteinuria and hematuria. Therefore, the mechanisms of disease and treatment methods for the two conditions are different.
Principles of treatment for pyelonephritis
Pyelonephritis, also known as an upper urinary tract infection, is a bacterial inflammation, with over 95% being caused by bacterial infections, among which 70% are caused by Escherichia coli. Therefore, as a bacterial infection-induced inflammation, antibiotic treatment is of course necessary. Clinically, third-generation cephalosporins or fluoroquinolone antibiotics are often chosen for bactericidal treatment. For acute pyelonephritis, it is generally recommended that medication be administered for 14 days, alongside measures such as increased water intake and frequent urination. In cases of chronic pyelonephritis, a low-dose, long-course antibacterial treatment, such as using nitrofurantoin, may also be employed, with continuous medication for two months. (Please consult a clinical doctor for specific medication use; do not self-medicate.)
Acute Pyelonephritis Nursing Measures
Acute pyelonephritis, also known as an upper urinary tract infection, is a type of bacterial inflammation. In terms of care, patients should first focus on increasing their fluid intake. If the patient does not have urinary system stones, tumors, or other factors causing urinary obstruction—that is, if there is no kidney hydronephrosis—it is recommended that the patient's daily urine output be maintained at 2000-2500 milliliters. This means increasing fluid intake can help flush the urinary system, reducing bacterial growth and reproduction, which is beneficial for the treatment of pyelonephritis. Secondly, since the patient has acute inflammation, dietary considerations should include eating light, avoiding heavy and greasy foods as well as spicy and stimulating foods, and paying attention to perineal hygiene. Additionally, during episodes of fever, if the patient's body temperature is not very high, a warm water sponge bath can be given, especially focusing on the neck, armpits, and the root of the thighs, which can facilitate heat dissipation and is very beneficial for reducing body temperature.
Symptoms of recurring pyelonephritis
Pyelonephritis is an upper urinary tract infection. When the condition recurs, the initial symptoms are similar. Patients may also experience fever, and the temperature can rise quickly, even up to 40 degrees Celsius. There may also be a systemic inflammatory response, characterized by fatigue and loss of appetite, among other symptoms. Recurrence can also cause pain in the lumbar region, which may even radiate to the perineal area, and patients may also experience visible hematuria. In urinalysis, leukocytes or positive leukocyte esterase can be observed. These are the symptoms of recurring pyelonephritis.