LSD, Screen and Confirmation, Serum or Plasma

CPT: 80307
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Test Details


  • Lysergic Acid Diethylamide


Detect presence of lysergic acid diethylamide (LSD), an illicit hallucinogen


Initial presumptive testing by immunoassay (IA) at a testing threshold of 0.5 ng/mL; presumptive positives confirmed by definitive liquid chromatography/tandem mass spectrometry (LC/MS-MS) at a testing threshold of 0.1 ng/mL

Specimen Requirements


Serum or plasma, protected from light


7 mL

Minimum Volume

3 mL


Red-top tube or green-top (heparin) tube. Gel-barrier tubes are not recommended.


Serum or plasma should be separated from cells within two hours of venipuncture. Submit serum or plasma in a plastic transport tube. Wrap specimen in foil to protect from light.

Storage Instructions

Freeze. Protect from light.

Stability Requirements



Room temperature



2 weeks


6 months

Causes for Rejection

Gel-barrier tubes


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
808577 LSD (Lysergide), Serum 808578 Specimen Type 31208-2
808577 LSD (Lysergide), Serum 808579 LSD (Lysergide), Serum N/A
808577 LSD (Lysergide), Serum 809229 LSD ng/ml 3730-9
Reflex Table for LSD
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 808843 LSD Serum, LC-MS/MS Confirm. 808844 LSD (Lysergide) ng/ml 3731-7

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