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Test Catalog
FHC18 - Overview: 18-Hydroxycorticosterone, Serum
18-Hydroxycorticosterone, Serum
C2729 - Overview: Breast Carcinoma-Associated Antigen, Serum
Aiding in the management of breast cancer in patients with metastatic disease by monitoring the progression or regression of disease in response to treatment Serial testing in women with prior stage II or III breast cancer who are...
ALAUR - Overview: Aminolevulinic Acid, Urine
Assisting in the differential diagnosis of the acute hepatic porphyrias
SALCT - Overview: Cortisol, Saliva
Screening for Cushing syndrome Diagnosis of Cushing syndrome in patients presenting with symptoms or signs suggestive of the disease
COU - Overview: Cobalt, 24 Hour, Urine
Detecting cobalt exposure Monitoring metallic prosthetic implant wear This test is not useful to assess vitamin B12 activity.
OROT - Overview: Orotic Acid, Random, Urine
Evaluation of the differential diagnosis of hyperammonemia and hereditary orotic aciduria Sensitive indicator of ornithine transcarbamylase (OTC) activity after administration of allopurinol or a protein load to identify OTC carriers
RPTU1 - Overview: Protein/Creatinine Ratio, Random, Urine
Evaluation of renal disease Screening for monoclonal gammopathy
CRSY - Overview: Chromium, Synovial Fluid
Monitoring metallic prosthetic implant wear and local tissue destruction in failed hip arthroplasty constructs This test is not useful for assessment of potential chromium toxicity.
COSY - Overview: Cobalt, Synovial Fluid
Monitoring metallic prosthetic implant wear and local tissue destruction in failed hip arthroplasty constructs This test is not useful for assessment of nutritional status or potential cobalt toxicity.
TPO - Overview: Thyroperoxidase Antibodies, Serum
Aiding in the diagnosis of thyroid autoimmune disorders Differentiating thyroid autoimmune disorders from nonautoimmune goiter or hypothyroidism As a diagnostic tool in deciding whether to treat a patient who has subclinical...
KIDST - Overview: Kidney Stone Analysis
Managing patients with recurrent renal calculi (kidney stones)
MUGS - Overview: Hexosaminidase A, Serum
Second-order test for diagnosing the B1 variant of Tay-Sachs disease This test is not useful for testing for Sandhoff disease.
RBCS - Overview: Relative B-Cell Subset Analysis Percentage, Blood
Screening for humoral or combined immunodeficiencies, including common variable immunodeficiency, hyper IgM syndrome, among others, where B-cell subset distribution information is desired Assessing B-cell subset reconstitution after...
PBPFD - Overview: Lead Profile Occupational Exposure, Blood
Detecting lead toxicity due to occupational exposure
QNKS - Overview: Natural Killer (NK)/Natural Killer T-Cell Subsets, Quantitative, Blood
Quantitation of the major natural killer (NK)-cell subsets relative to total NK cells (NK cell subsets) or total lymphocytes (NK T cells) Assessment in the following clinical contexts: HIV, primary immune deficiencies with NK cell...
FFT4F - Overview: T4, Free, Direct Dialysis
T4, Free, Direct Dialysis
Follow-up testing to identify variants in individuals with a clinical diagnosis of cystic fibrosis (CF) Identifying genetic variants in individuals with atypical presentations of CF (eg, congenital bilateral absence of the vas deferens or...
NHEM - Overview: Hereditary Erythrocytosis Focused Gene Panel, Next-Generation Sequencing, Varies
Focused evaluation of an individual with JAK2-V617F negative erythrocytosis associated with lifelong sustained increased red blood cell (RBC) mass, hemoglobin, or hematocrit Providing a focused genetic evaluation for patients with a...
Evaluating hereditary thrombotic thrombocytopenic purpura (TTP) in patients with a personal or family history suggestive of thrombotic microangiopathy Confirming a hereditary TTP diagnosis with the identification of known or suspected...
GNF11 - Overview: Hemophilia C (Factor XI Deficiency), F11 Gene, Next-Generation Sequencing, Varies
Evaluating factor XI deficiency (FXID) in patients with a personal or family history suggestive of FXID Confirming an FXID diagnosis with the identification of known or suspected disease-causing alterations in the F11 gene Determining...
GNANG - Overview: Hereditary Angioedema Focused Gene Panel, Next-Generation Sequencing, Varies
Evaluating hereditary angioedema (HAE) with normal C1 inhibitor (C1INH) in patients with a suggestive personal or family history Confirming a diagnosis of HAE with normal C1INH with the identification of a known or suspected...
DMNES - Overview: Peripheral Nervous System Demyelinating Neuropathy, Autoimmune Evaluation, Serum
Evaluating patients with a suspected immune-mediated demyelinating peripheral neuropathy
GNF7 - Overview: Factor VII Deficiency, F7 Gene, Next-Generation Sequencing, Varies
Evaluating factor VII deficiency (FVIID) in patients with a personal or family history suggestive of FVIID Confirming an FVIID diagnosis with the identification of known or suspected disease-causing alterations in the F7 gene...
LLTOF - Overview: Leukemia and Lymphoma Phenotyping, Technical Only, Varies
Evaluating lymphocytoses of undetermined etiology Identifying B- and T-cell lymphoproliferative disorders involving blood and bone marrow Distinguishing acute lymphoblastic leukemia from acute myeloid leukemia (AML) Immunologic...
GNMY9 - Overview: MYH9-Related Disorders, MYH9 Gene, Next-Generation Sequencing, Varies
Evaluating MYH9-related disorders, including May-Hegglin disorder/anomaly and Sebastian syndrome, in patients with a personal or family history suggestive of an MYH9-related disorder Diagnosing MYH9-related disorders, including May-Hegglin...
GNTHR - Overview: Thrombosis Disorders, Comprehensive Gene Panel, Next-Generation Sequencing, Varies
Evaluating hereditary thrombosis in patients with a personal or family history suggestive of a hereditary thrombosis disorder Confirming a hereditary thrombosis disorder diagnosis with the identification of a known or suspected pathogenic...
MCM24 - Overview: Mast Cell Mediators, 24 Hour, Urine
Evaluating patients at risk for mast cell activation syndrome (eg, systemic mastocytosis) using 24-hour urine collections
GBAZ - Overview: Gaucher Disease, Full Gene Analysis, Varies
Confirmation of a diagnosis of Gaucher disease Carrier screening in cases where there is a family history of Gaucher disease, but an affected individual is not available for testing or disease-causing alterations have not been identified
ALUCR - Overview: Aluminum/Creatinine Ratio, Random, Urine
Monitoring aluminum exposure when a 24-hour urine cannot be collected Monitoring metallic prosthetic implant wear when a 24-hour urine cannot be collected This test is not an acceptable substitute for serum aluminum measurements and is...
NMHR1 - Overview: N-Methylhistamine, Random, Urine
Screening for and monitoring of mastocytosis and disorders of systemic mast-cell activation, such as anaphylaxis and other forms of severe systemic allergic reactions as a part of a random urine collection profile Monitoring therapeutic...
OPTU - Overview: Orthostatic Protein, Timed Collection, Urine
Diagnosis of orthostatic proteinuria As a second-order test for additional characterization of proteinuria of less than 3 grams/24 hours, particularly in children or adolescents
PIPA - Overview: Pipecolic Acid, Serum
Differentiating between disorders of peroxisomal biogenesis (eg, Zellweger syndrome) and disorders with loss of a single peroxisomal function Detecting abnormal elevations of pipecolic acid in serum
FRDIG - Overview: Digoxin, Free, Serum
Evaluating recrudescent (breakthrough) digoxin toxicity in renal-failure patients Assessing the need for more antidigoxin Fab to be administered Deciding when to reintroduce digoxin therapy Monitoring patients with possible...
RURC1 - Overview: Uric Acid/Creatinine Ratio, Random, Urine
Differentiation of acute uric acid nephropathy from other causes of acute kidney failure For patients who cannot collect a 24-hour specimen, typically small children, a uric acid to creatinine ratio can be used to approximate 24-hour...
LSD6W - Overview: Lysosomal Storage Disorders, Six-Enzyme Panel, Leukocytes
Diagnosis of the lysosomal storage disorders: Fabry (in male patients), Gaucher, Krabbe, mucopolysaccharidosis I (MPS I), acid sphingomyelinase deficiency (Niemann-Pick types A and B), and Pompe (glycogen storage disorder type II) This...
AATHR - Overview: Thrombophilia Profile, Plasma and Whole Blood
Evaluating patients with thrombosis or hypercoagulability states Detecting a lupus-like anticoagulant; dysfibrinogenemia; disseminated intravascular coagulation/intravascular coagulation and fibrinolysis Detecting a deficiency of...
NMHR - Overview: N-Methylhistamine, Random, Urine
Screening for and monitoring of mastocytosis and disorders of systemic mast-cell activation, such as anaphylaxis and other forms of severe systemic allergic reactions using random urine specimens Monitoring therapeutic progress in...
FOBT - Overview: Fecal Occult Blood, Colorectal Cancer Screen, Qualitative, Immunochemical, Feces
Colorectal cancer screening Screening for gastrointestinal bleeding This test has not been validated for testing of patients with hemoglobinopathies.
DCORT - Overview: 11-Deoxycortisol, Serum
Diagnostic workup of patients with congenital adrenal hyperplasia Part of metyrapone testing in the workup of suspected secondary or tertiary adrenal insufficiency Part of metyrapone testing in the differential diagnostic workup of...
PSTF - Overview: Protein S Antigen, Plasma
Investigation of patients with a history of thrombosis
TCRB - Overview: T-Cell Receptor V-Beta Repertoire Analysis, Spectratyping, Blood
Assessment of T-cell receptor diversity in various clinical contexts including inborn errors of immunity (formerly primary immunodeficiencies), monitoring immune reconstitution post-hematopoietic stem cell transplantation, and temporal...
ALT - Overview: Alanine Aminotransferase (ALT) (GPT), Serum
Diagnosis and monitoring of liver disease associated with hepatic necrosis
ASNA - Overview: Arsenic, Nails
Detection of nonacute arsenic exposure in nail specimens
CL - Overview: Chloride, Serum
Evaluation of water, electrolyte, and acid-base status
HELIS - Overview: Helicobacter pylori Culture with Antimicrobial Susceptibilities, Varies
Recovery of Helicobacter pylori from gastric specimens for antimicrobial susceptibility testing of the organism (amoxicillin, clarithromycin, levofloxacin, metronidazole, rifampin, and tetracycline are routinely tested)
PSPTG - Overview: Phosphatidylserine/Prothrombin Antibody, IgG, Serum
Detecting IgG antibodies against phosphatidylserine/prothrombin complex in patients with strong suspicion of antiphospholipid syndrome (APS) who are negative for the APS criteria laboratory tests (lupus anticoagulant, IgG and IgM...
ALS - Overview: Aldolase, Serum
Detection of muscle disease
MONOS - Overview: Infectious Mononucleosis, Rapid Test, Serum
Diagnosis of Epstein-Barr virus mononucleosis
UOSMU - Overview: Osmolality, Random, Urine
Assessing the concentrating and diluting ability of the kidney
KS - Overview: Potassium, Serum
Evaluation of electrolyte balance, cardiac arrhythmia, muscular weakness, hepatic encephalopathy, and renal failure
Site Search
FDA Issues Final Rule to Regulate LDTs: Bill Morice, M.D., Ph.D. - Insights
by William Morice II, M.D., Ph.D., CEO and president of Mayo Clinic Laboratories. They discuss the final rule issued by the U.S. Food and Drug Administration (FDA) on April 29, 2024, to make explicit its...
Feb. 1986: Mayo Clinic's Year-Old Liver Transplant Program - Insights
In 1986, Mayo Clinic's year-old liver transplant program was growing to be one of the largest in the world. Take a step back to 1986 by reading this article from the February issue of Mayovox....
A New Year with Familiar Viruses: Bill Morice, M.D., Ph.D. - Insights
William Morice II, M.D., Ph.D., CEO and president of Mayo Clinic Laboratories, to welcome the new year and discuss the increase of respiratory viruses....
Final Rule on LDTs May Be Coming Soon: Bill Morice, M.D., Ph.D. - Insights
Mayo Clinic Laboratories. They discuss the Food and Drug Administration’s (FDA) progress on making a final rule around regulating laboratory-developed tests (LDTs)....
Robin Patel, M.D., Elected to 2-Year Term on ASM Board of Directors - Insights
Microbiology and Infectious Diseases Laboratories at Mayo Clinic, has been elected to serve a two-year term on the American Society for Microbiology Board of Directors....