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Test Name:
Renin, Direct, Plasma
- SBMF No:
44783 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
RENIN D - ABN:
Not required - CPT Code:
84244 - LOINC Code:
2915-7 - Ref Lab Test No:
2001575 - Also Known As:
Direct Renin - Also See:
30073 Renin Activity, Plasma
30074 Aldosterone/Renin Activity Ratio - Spec Type:
Plasma - Spec Container:
Lavender top (EDTA) tube - Pref Vol:
2.0 mL - Min Vol:
1.0 mL - Fasting:
No - Patient Prep:
Normal sodium diet (100-200 mEq/day) for at least three days
Take no medications known to affect renin-aldosterone system
Contact Medical Director if more information is needed - Spec Collect:
Supine: Specimen should be obtained between 8 a.m. and 10 a.m. (after at least two hours in supine position)
Upright: Specimen should be obtained before noon (after at least two hours in upright position; seated or standing)
Routine venipuncture
Do not collect in refrigerated tubes - Spec Process:
Promptly centrifuge 15 minutes
Immediately transfer plasma to separate plastic tube and freeze - Spec Store Transport:
Frozen - Spec Stability:
After separation from cells:
4 hours room temperature (20-30°C)
Refrigerated (2-8°C): Unacceptable
4 weeks frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Serum, heparin, citrate or oxalate plasma sample
Refrigerated sample
Hemolyzed sample - Spec Remarks:
CRITICAL FROZEN – Separate samples must be submitted when multiple tests are ordered
Do not refrigerate
Separate plasma from cells ASAP and freeze immediately - Methodology:
Immunoradiometric Assay - Clinical Significance:
Refer to:
- Reference Range:
2.5-45.7 pg/mL
Note:
Do not use this test for patients treated with Cathepsin B - Day Run:
Mon - Time Reported:
2-9 days - Test Type:
ENZYME
