LSD, URINE BY GC/MS

Code
000.0000
Name
LSD, URINE BY GC/MS
Category
None
Department
Send-Out
Start Date
Expiration Date
Synonyms
Acid
CPT Codes
83789
Site
SBMF
Reference Test
43503
ATLAS Test Code

Specimen Information

Type

Urine, random

Volume

5.0 ml

Transport Info

Refrigerated

Fasting Required?
False
Patient Instructions

Refrigerate and maintain protected from light.

Reference Range

LSD Urine
< 0.10 ng/mL
Cut-off = 0.10 ng/mL

2-Oxo-3-hydroxy-LSD Urine
< 0.10 ng/mL
Cut-off = 0.10 ng/mL

Methodology

Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)

Clinical Significance

Diagnosis and treatment of LSD use or overdose. After ingestion, the concentration of LSD in urine falls to <1 ng/mL within a few hours. LSD is detectable in urine for several days to a couple of weeks. 2-oxo-3-hydroxy-LSD (O-H-LSD) has been identified as an LSD metabolite present at severalfold higher concentrations than LSD in human urine. This assay can serve as both a screen and confirmatory assay at the same time.

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