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Hemolytic crisis

Definition

Hemolytic crisis occurs from the rapid destruction of large numbers of red blood cells (hemolysis). The destruction occurs much faster than the body can compensate by producing more red blood cells.

Alternative Names

Hemolysis - acute

Considerations

A hemolytic crisis causes acute (and often severe) anemia, because the body cannot make enough red blood cells to replace those destroyed. The part of red blood cells that carries oxygen (hemoglobin) is released into the circulation, which can lead to kidney damage.

Common Causes

There are many causes of hemolysis, including:

  • A lack of certain enzymes in red blood cells
  • Autoimmune disease
  • Certain infections
  • Changes to the hemogloben molecules inside red blood cells
  • Defects of the proteins that make up the internal framework of red blood cells
  • Medication side effects
  • Reactions to transfusions

Many of these conditions can lead to a hemolytic crisis.

Call your health care provider if

If you have any of the following symptoms, contact your doctor:

  • A decrease in the amount of urine you produce
  • Fatigue, pale skin, or other symptoms of anemia, especially if these symptoms get worse
  • Urine that looks red, red-brown, or brown (tea-colored)

What to expect at your health care provider's office

Emergency treatment may be necessary. This may include a hospital stay, oxygen, blood transfusions, and other treatments.

When your condition is stable, your doctor will perform a physical examination and ask questions, such as:

The physical examination may occasionally show swelling of the spleen (splenomegaly).

Tests may include:


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