How long does hematuria last in acute nephritis?

Written by Zhou Qi

Nephrology

Updated on September 14, 2024

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The condition of acute nephritis is generally quite severe. Patients may experience hematuria and proteinuria, with diffuse cellular proliferation in the glomeruli. However, this disease is self-limiting, and the condition can heal on its own. It is important to control the causes of acute nephritis and the complications it may cause to help patients overcome the difficulties. Afterward, the patients' hematuria and proteinuria could potentially disappear. Generally, it takes about 3 to 4 weeks for the urinalysis to turn negative, and some patients may even take up to six months to recover. If recovery takes more than six months, it is possible that the patient's acute nephritis has become chronic nephritis.

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Written by Zhou Qi

Nephrology

56sec

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Will acute nephritis cause facial swelling?

Acute nephritis can also cause facial swelling in patients. The pathological damage in patients with acute nephritis is the diffuse proliferation of glomerular cells, which reduces the glomeruli's ability to filter blood. As a result, patients may experience proteinuria and hematuria. Decreased kidney function in water excretion can lead to water accumulation in the body, causing edema in the lower limbs or facial area. The increase in urinary protein can also increase vascular permeability and decrease plasma osmotic pressure, leading to the movement of water outside the blood vessels. These factors can all cause edema. In the body, water tends to accumulate in areas where tissues are looser, such as the facial area. Thus, it is possible for patients with acute nephritis to experience facial swelling.

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Written by Li Liu Sheng

Nephrology

1min

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Is acute nephritis serious?

Acute nephritis is commonly seen in children, predominantly affecting male children. Often before the onset, there's a history of upper respiratory tract infection or skin infection. One to three weeks after these infections, patients may develop hematuria, swelling of the eyelids and lower extremities, and increased urinary protein. The severity of acute glomerulonephritis can vary; patients with milder forms of acute glomerulonephritis can be cured through appropriate treatment and standardized medication. However, if acute glomerulonephritis is not detected timely and treated properly, it can lead to severe complications, including uremia, heart failure, hypertensive encephalopathy, and other clinical manifestations. Therefore, acute nephritis must be taken seriously to avoid severe complications. Of course, with proper treatment, most patients with acute nephritis can fully recover and have a good prognosis.

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Written by Li Liu Sheng

Nephrology

1min 3sec

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How long does acute nephritis require bed rest?

Acute nephritis is commonly seen in children. Once acute nephritis occurs, the main clinical manifestations in patients typically include hematuria, which can be visible or microscopic. It is also accompanied by varying degrees of edema, elevated blood pressure, and even transient renal failure. As for how long patients with acute nephritis need to stay in bed, current studies suggest a minimum of 2-3 weeks of bed rest. If the patient’s hematuria disappears, urinary protein decreases, and edema subsides, they can gradually start moving out of bed. If the condition remains stable, activities can shift from indoors to outdoors. However, if visible hematuria reoccurs, or if edema reappears after activity, it is necessary to continue bed rest for another 4-6 weeks. Therefore, students suffering from acute nephritis often need to take a leave of absence from school and should be closely monitored for changes in their condition under a doctor's guidance.

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Written by Li Liu Sheng

Nephrology

1min

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What are the symptoms of acute nephritis?

Acute nephritis is commonly seen in children. Most cases of acute nephritis are preceded by a history of streptococcal infection one to three weeks before the onset. Once acute nephritis occurs, the main symptoms include the development of edema, especially swelling of the eyelids and face after waking up in the morning. Additionally, patients with acute nephritis will also experience hematuria, which can be visible or microscopic, with increased foam in the urine and a change in color, and even a decrease in urine output. Of course, patients with severe acute nephritis will also experience a significant increase in blood pressure, leading to nausea, vomiting, headaches, palpitations, chest tightness, shortness of breath, and an inability to lie flat, resulting in heart failure. Therefore, patients with acute nephritis need to undergo reasonable and standardized treatment to avoid complications.

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Written by Li Liu Sheng

Nephrology

1min 8sec

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acute nephritis symptoms

Acute nephritis is commonly seen in children and occurs more in males than females. It typically begins one to three weeks after an infection, mainly due to a post-streptococcal infection. The main symptom of acute nephritis is the appearance of edema, which is often an initial manifestation. Typically, this includes swelling of the eyelids in the morning, sometimes accompanied by mild swelling of the lower limbs. In addition, a urinalysis of patients might reveal blood, which can appear as either gross hematuria or microscopic hematuria. Furthermore, some patients with acute nephritis may also experience elevated blood pressure, primarily related to the edema. If managed through diuretic treatment, conditions may gradually return to normal. In severe cases of acute nephritis, symptoms can include dizziness, hypertensive encephalopathy, and even reduced urine output leading to acute kidney failure. Therefore, it is crucial to give significant attention to patients with acute nephritis and treat them actively to avoid severe complications.