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erythropheresis是什么意思，erythropheresis翻译
Erythropheresis: An Overview
Erythropheresis is a medical procedure used to collect and separate red blood cells (RBCs) from the bloodstream for various therapeutic purposes. This procedure is similar to apheresis, a technique used to collect other blood components such as platelets or plasma. Erythropheresis is primarily performed to treat conditions characterized by low red blood cell count, known as anemia, or to remove abnormal or infected red blood cells.
The Procedure
Erythropheresis involves several steps, including patient preparation, venipuncture, blood separation, and product collection. Before the procedure, the patient is usually given a mild sedative to ensure their comfort and safety. The healthcare provider will then insert a needle into a vein, typically in the patient's arm, to draw blood.
Once the blood is drawn, it is passed through a machine that separates the RBCs from other blood components, such as white blood cells, platelets, and plasma. This separation is achieved using a process called centrifugation, which involves spinning the blood at high speeds to separate its components based on their density.
The separated RBCs are then collected and stored for later use, while the other blood components are returned to the patient's body. In some cases, the collected RBCs may be treated or modified before being transfused back to the patient, depending on their specific medical condition.
Indications
Erythropheresis is used to treat a variety of conditions that result in low red blood cell count or abnormal red blood cells. These conditions include:
1. Anemia: A condition characterized by a decrease in the number of red blood cells or a decrease in the amount of hemoglobin, the protein that carries oxygen in the blood. Erythropheresis can be used to remove damaged or ineffective RBCs and promote the production of new, healthier cells.
2. Sickle Cell Anemia: A genetic disorder that causes the RBCs to become crescent