BIOTS - Overview: Biotinidase, Serum
Preferred test for the diagnosis of biotinidase deficiency Follow-up testing for certain organic acidurias
CD303 - Overview: CD303 (BDCA-2) Immunostain, Technical Component Only
Diagnosis of blastic plasmacytoid dendritic cell neoplasm
CD4I - Overview: CD4 Immunostain, Technical Component Only
Identification of T helper cells, histiocytes, and monocytes
CAIX - Overview: Carbonic Anhydrase IX (CA-IX) Immunostain, Technical Component Only
Diagnosis of clear cell renal cell carcinoma and clear cell papillary renal cell carcinoma
MESOP - Overview: Mesothelioma Panel (WT1/KRT5/TTF1/pCEA) Immunostain, Technical Component Only
Differentiation of mesothelioma and non-small cell lung cancer
SGSS - Overview: Synthetic Glucocorticoid Screen, Serum
Confirming the presence of listed synthetic glucocorticoids (see Interpretation) Confirming the cause of secondary adrenal insufficiency This test is not useful for detection of fluticasone propionate.
SUDC - Overview: Sudden Cardiac Death Pathology Consultation
Identifying specific causes contributing to sudden cardiac death
SDHB - Overview: SDHB Immunostain, Technical Component Only
Aids in the identification of succinate dehydrogenase B-deficient tumors
NSEI - Overview: Neuron-Specific Enolase Immunostain, Technical Component Only
Characterization of neuroendocrine differentiation in tumors
SSX18 - Overview: Synovial Sarcoma Panel, Technical Component Only
Aiding in distinguishing synovial sarcomas from similar sarcomas
SV40 - Overview: SV40 Immunostain, Technical Component Only
Identifying BK or JC polyomavirus
CYSQN - Overview: Cystinuria Profile, Quantitative, 24 Hour, Urine
Diagnosis of cystinuria using 24-hour urine collections
CTFNA - Overview: Cytology Fine-Needle Aspiration, Varies
Detection of malignancy Detection of certain inflammatory conditions
CDKPB - Overview: CD68 (KP1) Immunostain, Bone Marrow, Technical Component Only
Aiding in the identification of histocytic and myeloid lineage cells
PGM1 - Overview: CD68 (PG-M1) Immunostain, Technical Component Only
Identification of monocytic differentiation Phenotyping hematolymphoid neoplasms that are suspected to represent histiocytic sarcomas
CHRO - Overview: Chromogranin Immunostain, Technical Component Only
Aiding in the identification of tumors with neuroendocrine differentiation
CA153 - Overview: Cancer Antigen 15-3 (CA 15-3), Serum
Managing breast cancer patients when used in conjunction with clinical information and other diagnostic procedures Serial testing to assist in early detection of disease recurrence in previously treated stage II and III breast cancer...
CLZ - Overview: Clozapine, Serum
Monitoring patient compliance of clozapine treatment An aid to achieving desired serum levels
CBBRP - Overview: Coxiella burnetii (Q fever), Molecular Detection, PCR, Blood
Aiding in the diagnosis of Coxiella burnetii infection (eg, Q fever)
CRT24 - Overview: Creatinine, 24 Hour, Urine
Urinary creatinine, in conjunction with serum creatinine, is used to calculate the creatinine clearance, a measure of renal function Normalizing urinary analytes to account for the variation in urinary concentration
CD14I - Overview: CD14 Immunostain, Technical Component Only
Marker of histiocytic and monocytic lineage and follicular dendritic cells
CALPN - Overview: Calponin Immunostain, Technical Component Only
Marker for myoepithelium when differentiating ductal carcinomas in situ from infiltrating breast carcinoma Characterization of tumors of smooth muscle or myoepithelial lineage
COLIV - Overview: Collagen IV Immunostain, Technical Component Only
A marker of the basal lamina of capillaries and basement membranes in all organs
CD19I - Overview: CD19 Immunostain, Technical Component Only
Identification of normal and neoplastic B cells
CD57 - Overview: CD57 Immunostain, Technical Component Only
Marker of natural killer cells and a subset of follicular T helper cells Aiding in the identification of tumors of neuroectodermal origin
CD163 - Overview: CD163 Immunostain, Technical Component Only
Identification of cells of monocytic/histiocytic lineage, expressed late in maturation
C5FX - Overview: C5 Complement, Functional, Serum
Diagnosis of C5 deficiency Investigation of a patient with an undetectable total complement level
C8FX - Overview: C8 Complement, Functional, Serum
Diagnosis of C8 deficiency Investigation of a patient with an undetectable total hemolytic complement level
C6FX - Overview: C6 Complement, Functional, Serum
Diagnosis of C6 deficiency Investigation of a patient with an undetectable total complement level
TICU - Overview: Titanium/Creatinine Ratio, Urine
Measurement of titanium concentration as part of a profile to assess exposure and elimination of titanium
RPTU1 - Overview: Protein/Creatinine Ratio, Random, Urine
Evaluation of renal disease Screening for monoclonal gammopathy
STLPC - Overview: St. Louis Encephalitis Antibody Panel, IgG and IgM, Spinal Fluid
Aiding the diagnosis of St. Louis encephalitis using spinal fluid specimens
OPATM - Overview: Opiate Confirmation, Meconium
Detecting maternal prenatal opiate/opioid use up to 5 months before birth
PAS3 - Overview: Pediatric Allergy Screen <3 Years, Serum
Establishing a diagnosis of an allergy to egg whites, milk, wheat, soybeans, and house dust mites Defining the allergen responsible for eliciting signs and symptoms Identifying allergens: -Responsible for allergic response and/or...
GNMTC - Overview: Macro/Microthrombocytopenia Gene Panel, Next-Generation Sequencing, Varies
Evaluating hereditary macro- or microthrombocytopenia disorders in patients with a personal or family history suggestive of a hereditary macro- or microthrombocytopenia disorder Diagnosing hereditary macro- or microthrombocytopenia...
CDCOM - Overview: Celiac Disease Comprehensive Cascade, Serum and Whole Blood
Evaluating patients suspected of having celiac disease, including patients with compatible symptoms, patients with atypical symptoms, and individuals at increased risk (family history, previous diagnosis with associated...
GNBLF - Overview: Bleeding Disorders, Focused Gene Panel, Next-Generation Sequencing, Varies
Evaluating hereditary bleeding in patients with a personal or family history suggestive of a hereditary bleeding disorder and initial laboratory testing results are suggestive for factors VII, VIII, IX, or XI deficiency, or a von Willebrand...
PMLR - Overview: PML::RARA Quantitative, PCR, Varies
Diagnosis of acute promyelocytic leukemia (APL) Detection of residual or recurrent APL Monitoring the level of PML::RARA (promyelocytic leukemia/retinoic acid receptor alpha) in APL patients
IDENT - Overview: Organism Referred for Identification, Aerobic Bacteria
Identification of pure isolates of aerobic bacteria Differentiation of members of the Staphylococcus aureus complex (S aureus, Staphylococcus argenteus, Staphylococcus schweitzeri)
PKUSC - Overview: Phenylalanine and Tyrosine, Self-Collect, Blood Spot
Monitoring effectiveness of therapy in patients with hyperphenylalaninemia in a patient-collected specimen This test is not sufficient for follow-up for abnormal newborn screening results or for establishing a diagnosis of a specific...
PSAU - Overview: Prostate-Specific Antigen (PSA) Ultrasensitive, Serum
As an aid in the detection of prostate cancer when used in conjunction with a digital rectal exam in men ages 50 years and older To aid in the prognosis and management of individuals diagnosed with prostate cancer Monitoring disease after...
T3 - Overview: T3 (Triiodothyronine), Total, Serum
Second-order testing for hyperthyroidism in patients with low thyroid-stimulating hormone values and normal thyroxine levels Diagnosing triiodothyronine (T3) toxicosis This test is not useful for general screening of the population...
7AC4 - Overview: 7AC4, Bile Acid Synthesis, Serum
Screening for bile acid malabsorption in patients with irritable bowel syndrome with diarrhea
VWFMS - Overview: von Willebrand Factor Multimer Analysis, Plasma
Resolving discrepancies when results of complementary laboratory tests (eg, F8A / Coagulation Factor VIII Activity Assay, Plasma; VWACT / von Willebrand Factor Activity, Plasma; and VWAG / von Willebrand Factor Antigen, Plasma) are...
ASMW - Overview: Acid Sphingomyelinase, Leukocytes
Investigation of possible diagnosis of Niemann-Pick disease types A and B This test is not recommended for carrier detection because of the wide range of enzymatic activities observed in carriers and noncarriers.
RNP - Overview: RNP Antibodies, IgG, Serum
Evaluating patients with signs and symptoms of a connective tissue disease in whom the test for antinuclear antibodies is positive Testing for ribonucleoprotein particle antibodies is not useful in patients without demonstrable...
HRTVC - Overview: Heartland Virus, RNA, Molecular Detection, PCR, Spinal Fluid
Aiding in the diagnosis of central nervous system infection caused by Heartland virus using spinal fluid specimens
HEX4 - Overview: Glucotetrasaccharides, Random, Urine
Diagnosing Pompe disease, when used in conjunction with acid alpha-glucosidase enzyme activity assays and molecular genetic analysis of the GAA gene Monitoring patients with Pompe disease on enzyme replacement therapy May support the...
ALDNA - Overview: Aldosterone with Sodium, 24 Hour, Urine
Investigating primary aldosteronism (eg, adrenal adenoma/carcinoma and adrenal cortical hyperplasia) and secondary aldosteronism (eg, renovascular disease, salt depletion, potassium loading, cardiac failure with ascites, pregnancy, Bartter...
Distinguishing between hepatocellular carcinoma and chronic liver disease Monitoring individuals with hepatic cirrhosis from any etiology for progression to hepatocellular carcinoma Surveillance for development of hepatocellular...
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....
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....
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....
Week in Review: November 1 - Insights
Top highlights include: Facebook launches into the digital space of healthcare, medical breakthrough for Ebola, and how the brain makes memories.