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HelpTest Code RENIN Renin, Plasma Activity
Collection Container
Lavender (EDTA)
Specimen Required
Plasma
Specimen Volume
1.0 mL
Minimum Specimen Volume
0.8 mL
Special Handling Instructions
Keep at room temperature before and during centrifugation.
Whole
blood (unspun) is stable for 6 hours at room temperature.
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
Methodology
Radioimmunoassay (RIA)
Turnaround Time
3 – 7 days
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
CPT Code
84244