Renin Activity
Order Name
PRA
Revision Date 12/13/2019
Revision Date 12/13/2019
| Test Name | Methodology | LOINC Code |
|---|---|---|
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Renin Activity
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| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 2.0 mL (1.15 mL) | Plasma | Lavender Top K2 EDTA | Frozen |
| Instructions | Patient Preparation: The plasma renin activity cannot be interpreted if the patient is being treated with spironolactone (Aldactone). Spironolactone should be discontinued for 4 to 6 weeks before testing. 1. Draw blood directly in a chilled, lavender top (EDTA) tube. 2. Immediately place EDTA tube into an ice-water bath until thoroughly cooled. 4. Refrigerate specimen during centrifugation and immediately transfer plasma to plastic vial. (If a refrigerated centrifuge is unavailable, chill the centrifuge carriers. Centrifuge specimen for < or =5 minutes, then promptly transfer plasma.) 5. Immediately freeze plasma. Label specimen with Mobilab label or with patient name (first and last), date of birth, date and time of collection, collector initials, and test(s) being ordered. |
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| Reference Range | An interpretive report will be provided. | |||
| Methodology | Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) Portions of this test are covered by patents held by Quest Diagnostics |
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| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Monday through Friday; 1 p.m. |
| Expected TAT | 2-5 days |
| Notes | Specimen Stability: Frozen- 14 Days |
| CPT Code(s) | 84244 |
| Lab Section | NRLS-Mayo Medical Laboratories |