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Test Code RENIN Renin, Plasma Activity

Additional Information

To facilitate interpretation of test results, the patient should be taken off medications for at least 3 weeks prior to sample collection (only with the permission of the physician)


Since patient posture prior to collection affects renin levels, it is recommended that the patient be ambulatory for at least 30 minutes before blood collection

Collection Container

Lavender (EDTA)

Specimen Required


Special Handling Instructions

Keep at room temperature before and during centrifugation.

Whole blood (unspun) is stable for 6 hours at room temperature.

Specimen Volume

1.0 mL

Minimum Specimen Volume

0.8 mL

Transport Temperature

Whole blood room temperature, plasma frozen

Specimen Stability

Room temperature: 6 hours (Whole blood and plasma), Refrigerated: unstable, Frozen: 14 days (plasma)

Reasons for Rejection

Refrigeration at anytime is unacceptable, whole blood frozen unacceptable


Radioimmunoassay (RIA)

Turnaround Time

3 - 7 days

CPT Code


EMR Interface Order Code