Erythropoietin (EPO)

Test ID: 

702908

CPT code:

82668

Clinical Use:

This test is intended as an aid in the diagnosis of anemias and polycythemias. With the advent of the administration of recombinant erythropoietin as a biologic therapy to increase red blood cell mass, an erythropoietin assay may be used also to aid in the prediction and monitoring of response to recombinant erythropoietin treatment of anemia.

Test Information:

Erythropoietin (EPO), a glycoprotein (~30,400 daltons) produced primarily by the kidney, is the principal factor regulating red blood cell production (erythropoiesis) in mammals.3 Renal production is regulated by changes in oxygen availability. Normally, EPO levels vary inversely with hematocrit. Under conditions of hypoxia, the level of EPO in the circulation increases, leading to increased production of red blood cells. Conversely, a high hematocrit should suppress the release of EPO.

Specimen Type:

Serum

Requested Volume: 

0.5 mL

Minimum Volume: 

0.3 mL

Container Type: 

Red-top tube or gel-barrier tube

Collection:

If a red-top tube is used, transfer separated serum to a plastic transport tube.

Storage Instructions:

Maintain specimen at room temperature.

Stability Requirements:

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days

Freeze/thaw cycles

Stable x3

 

 

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