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Test Catalog

BRAFD - Overview: BRAF V600E/V600K Somatic Mutation Analysis, Tumor

Therapy selection for patients with cancer (eg, melanomas that may respond to BRAF inhibitors, colon cancers that may not respond to EGFR inhibitors) Aiding in the diagnosis/prognosis of certain cancers (eg, hairy cell leukemia, papillary...

CDPCR - Overview: Clostridioides difficile Toxin, PCR, Feces

Sensitive, specific, and rapid diagnosis of Clostridioides (Clostridium) difficile-associated diarrhea and pseudomembranous colitis The test is not recommended as a test of cure.

CLLMD - Overview: Chronic Lymphocytic Leukemia (CLL) Monitoring Minimal Residual Disease Detection, Flow Cytometry, Varies

Confirming the presence or absence of minimal residual disease in patients with known chronic lymphocytic leukemia who are either post-chemo/immunotherapy or post-bone marrow transplant

CMVP - Overview: Cytomegalovirus (CMV) Antibodies, IgM and IgG, Serum

Aiding in the diagnosis of acute or past infection with cytomegalovirus (CMV) Determining prior exposure to CMV This test should not be used for screening blood or plasma donors.

HOLDC - Overview: Hematologic Disorders, Chromosome Hold, Varies

Holding the bone marrow or peripheral blood specimen in the laboratory but delaying chromosome analysis while preliminary morphologic assessment is in process

ESBLS - Overview: Extended-Spectrum Beta-Lactamase-Producing Gram-Negative Bacteria Surveillance Culture, Feces

Screening for colonization of extended-spectrum beta-lactamase (ESBL)-producing organisms in stool Screening fecal microbiota transplant donor feces for ESBL-producing organisms. This test is not intended for medicolegal use.

FLCS - Overview: Immunoglobulin Free Light Chains, Serum

Monitoring serum from patients with monoclonal light chain diseases without a M-spike on protein electrophoresis May be useful as a diagnostic test in patients in whom there is a suspicion of primary systemic amyloidosis, light chain...

PREGN - Overview: Pregnenolone, Serum

An ancillary test for congenital adrenal hyperplasia, particularly in situations in which a diagnosis of both 21- and 11-hydroxylase deficiency have been ruled out Confirming a diagnosis of 3-beta-hydroxy dehydrogenase deficiency

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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....