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Test Code LAB30 Phenobarbital Level

Important Note

No add-ons after 8 hours of collection if specimen is still on gel separator.

Clinical System Name

Phenobarbital Level

Synonyms

PHENOB

LAB30

Sample Requirements

Specimen:  Whole Blood

Container(s): Lt. Green/Mint Top Lithium Heparin, Lt. Green/Lithium Heparin Microtainer, Gold SST, Gold Microtainer, Dark Green/Sodium Heparin, Red

Preferred Vol: 1.0 mL

Minimum Vol: 0.5 mL

 

Note:  Draw specimen just before next dose.

Processing Instructions

Reject due to:  Age of Specimen

Spin: Y

Aliquot: Y

Storage location: Core 5 Chemistry Refrigerator

 

Off-site collection: Draw specimen just before next dose. Specimen should be centrifuged within 2 hours of collection. Spin blood and transfer serum or plasma to plastic tube and refrigerate or freeze.

Stability

Specimen Type Temperature Time
Serum or Plasma RT

≤ 2 d
Serum or Plasma 2-8 C

≤ 30 d
Serum or Plasma -20 C or -70 C

≤ 90 d

Availability

STAT Performed TAT
Y 24/7 1 h

Performing Laboratory

Seattle Children's Laboratory    

Department

Department: Core Chemistry

Phone Number: 206-987-2617 (Client Services)

CPT Codes

80184

Methodology

Method:  EMIT by Vitros 4600

Analytical Volume: 0.02 mL + 0.03 mL dead space

Reference Range

Therapeutic: 15 - 40 µG/mL

Critical Values

≥ 49.9  µG/mL