10 - 16 days
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Enzyme Immunoassay (EIA)
Up tp 25 pg/mL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Patient preparation: Patient should be on a normal sodium diet, 110 mEq of sodium. Patient should be in a recumbent posture for at least 30 minutes prior to drawing specimen. Collect specimen in EDTA lavender top tube. Spiin and aliquot plasma off the cells IMMEDIATELY after collection into a screw capped plastic tube. Send to Specimen Processing frozen.