Specimen Collection Manual and Test Catalog
ALDOSTERONE, LC/MS/MS
Geisinger Epic Procedure Code: LAB1544 Geisinger Epic ID: 28597Serum (preferred) or plasma.
1 mL aliquot of serum (no SST) or plasma; minimum 0.25 mL.
Serum separator tubes are unacceptable. Draw blood in a no-additive (red-top) tube.
Draw "upright" samples at least 1/2 hour after patient sits up.
Allow to clot. Centrifuge. Separate serum after clotting.
Refrigerated (cold packs).
Room temperature: 4 days. Refrigerated: 7 days. Frozen: 28 days.
Moderate to gross hemolysis • Serum separator tube (SST).
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Adosterone level.
ALDOL, Quest test code 17181
Approximately 1-2% of individuals with primary hypertension have primary hyperaldosteronism characterized by hypokalemia (low potassium) and low direct renin. Because serum aldosterone concentrations vary due to dietary sodium intake and body position, some physicians prefer measurement of 24-hour urine concentration for aldosterone.