Specimen

Serum or Plasma

Collection Medium:

Alternate
Collection Media:

Green top tube (Na Heparin), Lavender top tube (EDTA)

Minimum:

Prefered Adult minimum: 2.0 mL serum or heparinized or EDTA plasma
Adult minimum: 1.0 mL serum or heparinized or EDTA plasma
Pediatric minimum: 0.65 mL serum or heparinized or EDTA plasma

Rejection Criteria:

Gel separator tubes

Analytic Time:

2 working days (upon receipt)

Reference Range:

Negative

Therapeutic Range:

Drug
              Sensitivity   Therapeutic Range                Toxic
Amobarbital    1 ug/ml      NA
Barbital       1 ug/ml      NA
Butalbital     1 ug/ml      1 - 10 ug/ml                 > 30 ug/ml
   (Florinal)
Mephobarbital  1 ug/ml      1 - 3 ug/ml
   (Mebaral)
Pentobarbital  2 ug/ml      Sedation 1-5 ug/ml           > 7 ug/ml
   (Nembutal)               ICP: 25 - 35 ug/ml
Phenobarbital  5 ug/ml     0-3 months: 15.0-30.0 ug/ml  > 50.0 ug/ml
   (Luminal)                Adult: 15 - 40 ug/ml
Secobarbital   1 ug/ml     NA

Comments:

Barbiturate screen tests for the presence of amobarbital, barbital, 
butalbital, mephobarbital, pentobarbital, phenobarbital, and 
secobarbital.

Test
Limitations:

Quantitation is only available for butalbital, mephobarbital, 
pentobarbital, and phenobarbital.

Methodology:

Gas Chromatography/Immunoassay

CPT Code:

82205

See also:
Pentobarbital (Nembutal) (As a Therapeutic Agent), Plasma
Phenobarbital, Plasma