It is recommended that samples be collected at a consistent time of day. Morning samples taken between 7:30 am and 12:00 noon have been recommended.
Draw blood in a SST/1.0 mL serum. Spin to separate and refrigerate.
Refrigerated 24 hours; Frozen 14 days
Patients suffering from most anemias will present with higher than normal concentrations of serum erythropoietin; whereas, those suffering from anemia associated with chronic renal failure may have values within the normal range. Abnormally high concentrations may also be induced by renal neoplasms, benign tumors, polycystic kidney disease, renal cysts, and hydronephrosis.