Renin Activity and Aldosterone

Test ID: 

704272

CPT code:

82088, 84244

Specimen Type:

Serum (refrigerated) and plasma (frozen)

Requested Volume: 

1 mL serum and 1 mL plasma

Minimum Volume: 

0.5 mL serum and 0.8 mL plasma (Note: This volume does not allow for repeat testing.)

Container Type: 

Red-top tube or gel-barrier tube and lavender-top (EDTA) tube

Patient Preparation: 

Refer to test descriptions for individual tests: Renin Activity, Plasma [002006] and Aldosterone. LC/MS [004374] for more detailed patient preparation and test collection information. After collection, immediately centrifuge the lavender-top tube at room temperature, transfer plasma to a transport tube, and freeze immediately. Label this tube “frozen plasma−renin.” If a red-top tube is used, transfer separated serum to a plastic transport tube. Label the serum tube “serum−aldosterone.” To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.

Collection:

Red-top tube or gel-barrier tube and lavender-top (EDTA) tube

Storage Instructions:

Refrigerate serum. Freeze plasma.

Rejection Criteria

Gross hemolysis or lipemia

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