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.
more

Collect

Lavender EDTA
more

Specimen Preparation

Centrifuge in a non-refrigerated centrifuge, separate plasma from cells and send 1.5 mL plasma frozen in a screw-capped plastic vial. CRITICAL FROZEN.
more

Minimum Volume

1.0 mL
more

Transport Temperature

Critical frozen
more

Rejection Criteria

Hemolyzed, grossly lipemic or icteric specimens, serum, plasma other than EDTA, non-frozen samples
more

Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days
more

Methodology

Chemiluminescence
more

Reference Range

3.1 - 57.1 pg/mL
more

Performing Laboratory

Warde Medical Laboratory
more