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Glomerulonephritis

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Anatomy and Physiology II

Definition

Glomerulonephritis is a type of kidney inflammation that primarily affects the glomeruli, which are tiny structures in the kidneys responsible for filtering blood. This condition can lead to damage of the glomeruli, affecting their ability to filter waste products from the blood effectively, and can result in proteinuria, hematuria, and edema. Understanding this condition is essential for grasping how kidney structure and nephron function are impacted by inflammatory processes.

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5 Must Know Facts For Your Next Test

  1. Glomerulonephritis can be caused by infections, autoimmune diseases, or exposure to certain drugs or toxins.
  2. There are two main types: acute glomerulonephritis, which comes on suddenly, and chronic glomerulonephritis, which develops gradually over time.
  3. Symptoms often include dark, cloudy urine, swelling in various parts of the body, high blood pressure, and decreased urine output.
  4. Diagnosis typically involves blood tests, urine tests, and sometimes a kidney biopsy to assess the degree of damage.
  5. Treatment varies based on the underlying cause but may include medications to control inflammation, manage symptoms, and treat any infections.

Review Questions

  • How does glomerulonephritis affect the overall function of nephrons in the kidneys?
    • Glomerulonephritis directly impacts the function of nephrons by causing inflammation and damage to the glomeruli. This disruption compromises the nephron's ability to filter blood efficiently, leading to issues such as proteinuria and hematuria. When the glomeruli are inflamed, their filtration barrier becomes more permeable, allowing proteins and red blood cells to leak into the urine instead of being retained in the bloodstream.
  • In what ways can acute glomerulonephritis develop as a consequence of other health conditions?
    • Acute glomerulonephritis can arise following infections such as strep throat or skin infections caused by certain bacteria. Additionally, autoimmune disorders like lupus can trigger an immune response that mistakenly attacks kidney tissues. This inflammation can lead to sudden symptoms such as hematuria and edema as the kidneys struggle to filter waste products from the blood effectively. Identifying these connections is crucial for proper diagnosis and treatment.
  • Evaluate the long-term implications of untreated chronic glomerulonephritis on kidney health and overall well-being.
    • Untreated chronic glomerulonephritis can result in significant long-term consequences, including progressive kidney damage that may lead to chronic kidney disease or end-stage renal failure. As the nephron function declines, waste products accumulate in the body, causing serious health issues like hypertension and electrolyte imbalances. Ultimately, patients may require dialysis or kidney transplantation if the damage is severe enough. Recognizing these potential outcomes emphasizes the importance of early diagnosis and intervention.
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