Description
Why It’s Done
Doctors may recommend an EPO test to:
• Diagnose the cause of anemia, particularly if it’s not clear whether the anemia is due to kidney problems, bone marrow disorders, or nutrient deficiencies.
• Evaluate polycythemia, a condition with too many red blood cells, to determine whether it’s due to excess EPO production or another cause.
• Monitor kidney function, since low EPO levels can be a sign of kidney disease.
• Distinguish between different types of bone marrow disorders or cancers that affect red blood cell production.
• Investigate possible EPO abuse in athletes (in rare cases).
Preparation
• No special preparation is usually needed.
• Inform your doctor about any medications or supplements you are taking, especially those that affect kidney function or red blood cell production.
• A morning blood sample is sometimes preferred for consistency.
