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Test Catalog

VMA - Overview: Vanillylmandelic Acid, 24 Hour, Urine

Screening children for catecholamine-secreting tumors using a 24-hour urine collection when requesting testing for vanillylmandelic acid only Supporting a diagnosis of neuroblastoma Monitoring patients with a treated neuroblastoma

SRAU - Overview: Serotonin Release Assay, Unfractionated Heparin, Mass Spectrometry, Serum

Detecting heparin-dependent platelet activating antibodies implicated in the pathogenesis of heparin-induced thrombocytopenia

CALPR - Overview: Calprotectin, Feces

Evaluating patients suspected of having a gastrointestinal inflammatory process Distinguishing inflammatory bowel disease from irritable bowel syndrome, when used in conjunction with other diagnostic modalities, including endoscopy,...

TBSU - Overview: Targeted Benzodiazepine Screen, Random, Urine

Determining compliance or identifying illicit benzodiazepine drug use This test is not intended for employment-related testing.

DXPIN - Overview: Doxepin and Nordoxepin, Serum

Monitoring doxepin therapy Evaluating potential doxepin toxicity Evaluating patient compliance

TGRP - Overview: Testosterone, Total and Free, Serum

Alternative, second-level test for suspected increases or decreases in physiologically active testosterone: -Assessment of androgen status in cases with suspected or known sex hormone-binding globulin-binding abnormalities -Assessment of...

UBA1Q - Overview: UBA1 Mutation Quantitative Detection, VEXAS syndrome, Droplet Digital PCR, Varies

Identification of pathogenic variant(s) in the UBA1 gene in patients presenting with symptoms concerning for or consistent with VEXAS syndrome

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Mayo Clinic Ranked No. 1 Hospital Nationwide by U.S. News & World Report - Insights

Report’s 29th annual "Best Hospitals Honor Roll" published online on August 14. Mayo Clinic also ranked No. 1 in more specialties than any other hospital in the country....

NELL-1 [Test in Focus] - Insights

D., discusses how Mayo Clinic Laboratories’ new immunohistochemistry test for the detection of NELL-1 antigen, a biomarker for membranous nephropathy found in 10% to 15% of patients, provides diagnostic...

Looking Back on Clinical Chemistry 1 - Insights

in the Mayo Clinic Medical Laboratory Science program, takes a look back on her Clinical Chemistry 1 course....

Detection of (1→3)-𝝱-D-glucan as a Marker of Invasive Fungal Disease - Insights

In this month’s “Hot Topic,” Elitza Theel, Ph.D., will discuss the detection of (1→3)-β-D-glucan (BDG) in serum as a biomarker for the presence of invasive fungal infections....

Orexin-A/Hypocretin-1 for the Diagnosis of Type 1 Narcolepsy [Test in Focus] - Insights

test to perform as well as to interpret. The orexin-A/hypocretin-1 test is a sensitive and specific alternative to the MSLT to diagnose type 1 narcolepsy....