PHENOBARBITAL

Mnemonic

PHENO

Synonym

Luminal®

Specimen Collection Requirements

Collect

Serum or Plasma, one 5.0 mL gold (SST), 7.0 mL red or 3.0 mL mint green (lithium heparin, PST) top tube

Handling

Allow serum to clot completely at room temperature (minimum: 30 minutes). Centrifuge and separate serum or plasma from cells ASAP.

Preferred Volume

1.0 mL

Minimum Volume

0.5 mL

Transport

Refrigerated (2-8°C)

Stability

AFTER SEPARATION FROM CELLS: Ambient (20-25°C): 24 hours; Refrigerated (2-8°C): 1 month; Frozen (at or below -20°C): 3 months

Testing Information

Performed

7 days/week

Method

Enzymatic Immunoassay

Referral Lab

Samaritan Health Services Laboratories

Reference Values

Therapeutic Range

15-40 µg/mL

Toxic Levels

Slowness, ataxia, nystagmus: 35-80 µg/mL
Coma with reflexes: 65-117 µg/mL
Coma without reflexes: 100 µg/mL

CPT Codes

80184

Last Updated: Thursday, January 5, 2017 03:42:24 AM