Test Details
Mnemonic
DREN
Ordering Code
1003995
CPT-4 Code(s)
84244
Specimen Information
Patient Preparation
Angiotensin Converting Enzyme (ACE) Inhibitors should be avoided, if possible, for at least 48 hours prior to collection. Spironlactone (Aldactone) should be discontinued 4 - 6 weeks prior to testing. Patient should be on a normal sodium diet.
Collect
Lavender EDTA
Specimen Preparation
Centrifuge collection tube in a non-refrigerated centrifuge, separate plasma from cells immediately and send 1.5 mL plasma frozen in a screw capped plastic vial. CRITICAL FROZEN.
Minimum Volume
1.0 mL
Transport Temperature
Critical frozen
Rejection Criteria
Serum, hemolysis, gross lipemia, icteria. Plasma from dark blue EDTA collection tubes. Non-frozen
plasma.
plasma.
Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days
Refrigerated: Unacceptable
Frozen: 30 days
Methodology
Chemiluminescence
Reference Range
3.1 - 57.1 pg/mL
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
Yes