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Test Directory

Test Directory Primidone and Phenobarbital

Primidone and Phenobarbital

Test Summary

Drug monitor

Aliases

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL serum collected in a red-top tube (no gel)

Minimum Volume

0.2 mL

Instructions

N/A

Patient Preparation

Collect as trough just prior to next dose

Storage

N/A

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 72 hours
Refrigerated: 7 days
Frozen: 30 days

Limitations

N/A

Other Acceptable Specimens

Plasma collected in: Sodium heparin (green-top) tube, lithium heparin (green-top) tube, or EDTA (lavender-top) tube

Unacceptable Specimens

Serum separator tube (SST) • Any serum collection tube with additives

Order Code

PRIMD

EPIC (Premier) Code

LAB337

Includes

N/A

CPT Code

80184
80188

Billing Code

670434
670435

CPT Statement

Methodology

Immunoassay (IA)

FDA Status

FDA Approved

Physician Attestation of Informed Consent

N/A

Testing Laboratory

Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly VA, 20153

Department

Reference Testing

Reference Range

Primidone	5.0-12.0 mg/L
Phenobarbital	15.0-40.0 mg/L

Setup Schedule / Expected Turnaround Time

Monday - Saturday morning; Report available: 1 day