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Accurately characterize marijuana use through urine THC testing - Insights

monitoring evaluation, which identifies metabolites of both delta-9 tetrahydrocannabinol (THC) and delta-8 THC to accurately identify and characterize patients’ marijuana use....

Marijuana - Mayo Clinic Laboratories

Marijuana Δ9-Tetrahydrocannabinol (THC) Interpretation The parent drug, Δ9-tetrahydrocannabinol (THC), has a clearance half-life of less than 30 minutes and is not detectable...detectable in urine. Following a dose of THC, the metabolite...

Weeding Through the Information: Interpreting Laboratory Tests to Determine New vs. Residual Use of Marijuana - Insights

of marijuana in a patient, and teaches how to calculate the carboxy-tetrahydrocannabinol (carboxy-THC) to creatinine ratio along with a decision ratio by demonstrating its clinical utility via case study...

Marijuana - Insights

Mayo Clinic Laboratories’ robust portfolio of clinically supported assays to test for marijuana use is consistent with professional recommendations.

Confirmatory testing - Insights

Use of mass spectrometry technology in Mayo Clinic Laboratories’ confirmatory drug testing enables accurate identification of parent drugs and metabolites, equipping providers with confidence about their patients’ drug use.

Drug class testing - Insights

Check out Mayo Clinic Laboratories’ full menu of testing for individual drug classes, including benzodiazepines, stimulants, opioids, alcohol, and more.

md-hilton.pdf

MARYLAND DEPARTMENT OF HEALTH OFFICE OF HEALTH CARE OUALITY LABORATORIES AND TISSUE BANKS 7I20 SAMUEL MORSE DRIVE FL 2 COLUMBIA, MARYLAND 2 I 046.3422 MEDICAL LABORATORY PERMIT NON - EXPIRING NUMBT:R:476 EFFECTIVEDATE:05/12l2021 Pursuunt to...

A Test in Focus Archives - Page 4 of 11 - Insights

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Precision pain management - Insights

Our liquid chromatography-tandem mass spectrometry, high-resolution accurate mass (LC-MS/MS HRAM) screens, and confirmatory testing for controlled substances are available based on the needs of your patients. 

MCL Therapeutics Test Request Form MC076719

MCL Therapeutics Test Request Form Complete print Reset Form Therapeutics Test Request Client Information required Client Client Account Client Phone Street Address

MCL - Therapeutics Test Request Form - MC0767-19

MCL - Therapeutics Test Request Form

Testing Archives - Page 7 of 26 - Insights

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Comprehensive urine drug profiles - Insights

Mayo Clinic Laboratories’ comprehensive controlled substance monitoring profiles use multiple methodologies to detect the lowest levels of substances.

Toxicology Transformed: From Opioids to Saliva - A Chemistry-Centric Journey - Insights

As drug trends and diagnostic technologies evolve, toxicology must adapt to meet the demands of healthcare, workplace safety, and public health—focusing on opioid detection, CBD use, patient-centered testing, and new methods like saliva...

Chain of custody drug testing - Insights

Chain of custody testing at Mayo Clinic Laboratories is performed on urine, serum, and meconium and adheres to the highest quality standards to provide secure results.

Precision pain management - Insights

Our liquid chromatography-tandem mass spectrometry, high-resolution accurate mass (LC-MS/MS HRAM) screens, and confirmatory testing for controlled substances are available based on the needs of your patients. 

Weeding Through the Information: Interpreting Laboratory Tests to Determine New vs. Residual Use of Marijuana - Insights

Reviewing the challenges healthcare providers face in distinguishing between new and residual marijuana use in patients.

MCL - Chain of Custody Request - MC1944

MCL - Chain of Custody Request

Specific Drug Groups - Mayo Clinic Laboratories

Specific Drug Groups Use the following links to view information for specific drug categories: Alcohol Amphetamine-Type Stimulants...

New tests launched in March - Insights

In March 2023, Mayo Clinic Laboratories announced twenty nine new tests along with numerous reference value changes, obsolete tests, and algorithm changes.

Emergency toxicology - Insights

Mayo Clinic Laboratories’ emergency toxicology testing can help providers manage overdose by clarifying whether symptoms are due to the presence of drugs.

Comprehensive drug urine profiles - Insights

Able to detect 22 drug classes, our comprehensive addiction medicine profile can help identify polysubstance use disorder as well as assess and manage patients at risk for substance use disorder.

Emergency/Overdose - Mayo Clinic Laboratories

Emergency/Overdose This test is intended to manage an apparent overdose, intoxicated patient, or determine if a specific set of symptoms might be due to the presence of drugs. This test is designed...

New tests launched in February - Insights

In February 2022, Mayo Clinic Laboratories announced fourteen new tests along with numerous reference value changes, obsolete tests, and algorithm changes.

Nicotine - Insights

Learn more about Mayo Clinic Laboratories’ testing to identify and monitor nicotine use as part of a patient’s nicotine-use cessation treatment plan, before anesthesia/surgery, or as part of insurance policy assessments.

MCL - General Test Request Form - MC1360

MCL - General Test Request Form

Therapeutics - Insights

Mayo Clinic Laboratories offers the industry’s most comprehensive therapeutics test menu. Developed by experts to align with governmental and professional recommendations, our assays combine cutting-edge methodologies with precision...

Week in Review: October 18 - Insights

Top highlights include: scientists continue to investigate mysterious vaping illnesses, a possible vaccine for breast cancer could be available in less than a decade, and determining if patients are sick from the flu or from vaping.

MCL Pharmacogenomic Associations Tables MC409162

MCL Pharmacogenomic Associations Tables Pharmacogenomic Association Tables Disclaimer included tables educational purposes making clinical decisions

High-resolution targeted stimulant and phencyclidine (PCP) screen - Insights

In this month’s “Hot Topic,” Paul Jannetto, Ph.D., discusses the high-resolution targeted stimulant and PCP screening test from Mayo Clinic Laboratories, which offers sensitivity and specificity for use in the monitoring and management of...

https://www.mayocliniclabs.com/test-notifications/cpt-codes.php?format=excel

cpt_code_updates Mayo Test ID Test Name CPT Code GLSF Glucose, Spinal Fluid 82945 A1AF Alpha-1-Antitrypsin, Random, Feces 82103 TPSF Protein, Total, Spinal Fluid 84157 HCO3 Bicarbonate, Serum 82374 TIBC Total Iron Binding Capacity,...

https://www.mayocliniclabs.com/test-catalog/loinc-codes.php

Test Order LOINC Values current as of August 28, 2025 Test ID Test Order Name Order LOINC Code LOINC Attributes Method Name 10AIH Factor X Inhibitor Profile, Professional Interpretation 69049-5 Coagulation specialist...