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Zhou Qi
Nephrology
About me
An associate chief physician in the Nephrology Department of the People's Hospital of Ma'anshan City, with a Master's degree from a key medical university. Participated or led multiple projects funded by the Natural Science Foundation, and published nearly ten papers in Chinese and core journals.
Proficient in diseases
Glomerular diseases, diabetic nephropathy, lupus nephritis, blood purification.
Voices
Does diabetic nephropathy require a biopsy?
Whether a patient with diabetic nephropathy needs a biopsy depends on the condition of the patient. Firstly, if the kidney disease is in the early stages and the blood creatinine level has not exceeded 256 micromoles per liter, a kidney biopsy can be considered. Otherwise, if the blood creatinine level exceeds 256 micromoles per liter, a biopsy is no longer meaningful since significant fibrosis and hardening of kidney tissue have already occurred. At this point, if it is unclear whether the proteinuria is caused by diabetes or another disease, a kidney biopsy can be considered to diagnose the cause and extent of glomerular damage, and to provide a basis for treatment.
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.
Does nephrotic syndrome cause itchy skin?
Nephrotic syndrome generally does not cause itchy skin in patients. In patients with nephrotic syndrome, the glomerular filtration barrier is severely damaged, leading to a significant presence of urinary protein and edema, but itchy skin is a rare clinical symptom. If a patient experiences itchy skin, it is recommended to visit the dermatology department of a standard hospital. As such patients may have a disordered immune system, they are prone to various skin issues, such as allergic dermatitis and eczema, which might cause symptoms of itchy skin. However, these are not directly related to nephrotic syndrome.
Is IgA nephropathy sexually transmitted?
IgA nephropathy, a type of chronic glomerulonephritis, does not transmit through sexual intercourse. This condition involves a sterile inflammatory response within the glomeruli of the kidneys, not caused by pathogens such as bacteria, viruses, or fungi. Instead, it results from an immune dysfunction, causing inflammation in the glomeruli without any infectious agents. Therefore, IgA nephropathy is not contagious, and sexual intercourse does not pose a risk of transmitting the condition to a sexual partner. As such, patients with IgA nephropathy can engage in sexual activities if their physical condition permits.
Can patients with IgA nephropathy have sexual intercourse?
Patients with IgA nephropathy can engage in sexual intercourse, but there are certain prerequisites. Firstly, this disease is not contagious, and it will not be transmitted to the partner during intercourse. Secondly, there is not a significant relationship between renal function and sexual capability; patients with kidney diseases typically retain normal sexual and reproductive functions. However, since sexual activity requires a certain amount of physical strength, and in cases where the patient's condition is particularly severe, it might render the patient unable to engage in sexual activities. Therefore, if the patient does not have significant hypertension, severe edema, especially genital edema, pulmonary edema, or heart failure, they would be capable of engaging in sexual activities, and thus can have intercourse.
What are the symptoms of chronic kidney failure?
The symptoms of chronic kidney failure are related to the severity of the condition; the more severe the kidney failure, the more symptoms the patient will have. In the early stages, patients may not feel uncomfortable or show any symptoms. Some patients may experience swelling in the lower limbs and facial area. Others may display clinical signs such as elevated blood pressure and visible blood in the urine. As kidney failure progresses and blood creatinine levels exceed 442 umol/L, patients may experience fatigue, which is due to renal anemia. Some patients may also experience a loss of appetite, nausea, vomiting, and other gastrointestinal symptoms.
How many days does the fever last in acute nephritis?
Generally speaking, acute nephritis itself does not cause fever symptoms in patients. Acute nephritis can cause visible hematuria and an increase in foamy urine. Some patients may also experience a reduction in urine output, severe edema, kidney failure, and other clinical symptoms. However, fever is not a common symptom caused by acute nephritis itself. If such patients develop a fever, it may be due to lung or gastrointestinal infections caused by acute nephritis, as patients with acute nephritis have lowered immune capabilities and are often prone to bacterial infections in other parts of the body, such as coughing and sputum production. In such cases, the patient might have lung inflammation and would require antibiotic treatment to kill the bacteria. Generally, most patients' conditions can be controlled after 10 to 14 days.
How to supplement for anemia in diabetic nephropathy?
Patients with diabetic nephropathy who exhibit anemia are often in a state of chronic renal failure. This anemia caused by chronic kidney disease is mainly due to the decreased secretion of erythropoietin by the kidneys. Therefore, treatment involves the use of erythropoietin to stimulate bone marrow hematopoiesis. In addition to this medication, patients generally also need to supplement with iron preparations, such as ferrous succinate, sucrose iron, etc., and take oral folic acid, all of which are raw materials for blood formation. Furthermore, if patients have severe malnutrition, they should also supplement with foods rich in protein, such as eggs, milk, chicken, duck, fish, etc. (Please use medications under the guidance of a doctor.)
Causes of edema in nephrotic syndrome
Edema is a diagnostic criterion for nephrotic syndrome, as well as a major clinical symptom and characteristic of the syndrome. There are several reasons why patients develop edema. First, a large amount of protein leaks out from the kidneys, causing a decrease in the concentration of plasma albumin and a decrease in the colloid osmotic pressure in the plasma, which makes it easy for water to move from inside the blood vessels to outside, causing edema. Second, patients with nephrotic syndrome have increased vascular permeability, which also makes it easy for water to enter the interstitial tissues. Among patients with nephrotic syndrome, some are prone to acute renal failure, which further decreases the kidney's ability to excrete water, and these factors together lead to the common occurrence of edema in patients.
Why doesn't IgA nephropathy cause swelling?
IgA nephropathy refers to the abnormal deposition of IgA immunoglobulin in the glomeruli of patients, which causes an inflammatory response and damages the glomerular capillaries. The extent of this damage varies, so not all patients will experience swelling. If the condition is severe, causing significant proteinuria, patients may develop hypoproteinemia and consequent decrease in plasma colloidal osmotic pressure, leading to swelling. If renal failure has occurred, the kidneys' ability to excrete water decreases, which can also cause swelling. Some patients may experience swelling due to damage to the renal tubules, which increases the reabsorption capacity for water. Otherwise, patients may not show obvious swelling, such as those with only mild proteinuria and hematuria, whose clinical symptoms are not pronounced.