Purpose
Therapeutic Drug Monitoring
Method(s)
Headspace Gas Chromatography (GC)
Suggested CPT Code(s)
82542
New York State Approval Status

Approved

Turnaround Time

5 days

Test Includes
1 Paraldehyde Headspace Gas Chromatography (GC) mcg/mL 1 Environmental/Occupation Toxin
2 Acetaldehyde Paraldehyde Metabolite Headspace Gas Chromatography (GC) mg/dL 0.5 Environmental/Occupation Toxin

Specimen Type
Urine
Requested Volume
2 mL
Minimum Volume
0.7 mL
Special Handling
Promptly transfer sample into a 5 or 10 mL plastic tube and immediately freeze for shipping.
Specimen Container
Plastic tube

Additional Collection Instructions

Transport Temperature
Frozen
Light Protection
Not Required
Rejection Criteria
Received Room Temperature. Received Refrigerated.

Rejection criteria pertain to clinical specimen submissions only.

Stability
Room Temperature: Not Stable
Refrigerated: Not Stable
Frozen (-20 °C): Undetermined

Acetaldehyde is an unstable compound post-collection and will both form and degrade under certain sample handling conditions. Even when extreme precautions are taken to maintain the integrity of Acetaldehyde during sample collection, transport and analysis, the results will be affected under typical collection and laboratory procedures.
1 Paraldehyde Headspace Gas Chromatography (GC) mcg/mL 1 Environmental/Occupation Toxin
2 Acetaldehyde Paraldehyde Metabolite Headspace Gas Chromatography (GC) mg/dL 0.5 Environmental/Occupation Toxin

Interface Map

LOINC® Information