Test Code PHNO Phenobarbital, Plasma or Serum

Methodology

EMIT® Enzyme Immunoassay

Munson Healthcare Laboratories

Specimen must arrive within 24 hours of draw.

Submit only 1 of the following specimens:

Plasma

Container/Tube: Green-top (heparin) tube

Specimen Volume: 0.5 mL of heparinized plasma

Transport Temperature: Refrigerate

Collection Instructions: Draw specimen representing the trough level just before next dose.

Note: 1. Indicate plasma.

2. Label specimen appropriately (plasma).

Serum

Container/Tube: Gold-top serum gel tube

Specimen Volume: 0.5 mL of serum

Transport Temperature: Refrigerate

Collection Instructions: Draw specimen representing the trough level just before next dose.

Note: 1. Indicate serum.

2. Label specimen appropriately (serum).

15-40 µg/mL

Critical value (automatic call-back):

Pediatric up to 21 years old: ≥ 50 µg/mL

Patients 21 years and older: ≥ 60 µg/mL

Monday through Sunday

80184