Specimen

Serum

Collection Medium:

Alternate
Collection Media:

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

Minimum:

Preferred Adult minimum: 1.5 mL serum, heparinized, or EDTA plasma
Absolute Adult minimum: 0.9 mL serum, heparinized, or EDTA plasma
Pediatric minimum: 0.6 mL serum, heparinized, or EDTA plasma

Rejection Criteria:

Gel separator tubes

Analytic Time:

2 working days (upon receipt)

Reference Range:

Dose-Related Range:  0.1 - 2.2 mcg/mL based on common dosage amounts

Toxic = > 2.5 mcg/mL

Test
Limitations:

Minor adverse effects may occur with this range.  Clorazepate is 
assayed as nordiazepam.

Methodology:

Gas Chromatography

CPT Code:

80154

See also:
Diazepam (Valium & Nordiazepam), Serum

See Additional Information:
Critical Laboratory Values