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Test Catalog

MRDMR - Overview: Multiple Myeloma Minimal Residual Disease by Flow Cytometry, Bone Marrow

Detecting low level (minimal residual disease) myeloma cells after therapy to confirm remission has been achieved

NBILI - Overview: Neonatal Bilirubin, Serum

Assessing liver function Evaluating a wide range of diseases affecting the production, uptake, storage, metabolism, or excretion of bilirubin Monitoring the efficacy of neonatal phototherapy

MAGRU - Overview: Magnesium/Creatinine Ratio, Random, Urine

Assessing the cause of abnormal serum magnesium concentrations Determining whether nutritional magnesium loads are adequate Calculating urinary calcium oxalate and calcium phosphate supersaturation and assessing kidney stone risk.

PLHBB - Overview: Plasma Free Hemoglobin, Plasma

Determining whether hemolysis is occurring such as from: -Transfusion reaction -Mechanical fragmentation of red blood cells -Relative comparison to baseline levels in extracorporeal membrane oxygenation and centrifugal ventricular assist...

TTIGS - Overview: Tetanus Toxoid IgG Antibody, Serum

Assessing antibody response to the tetanus toxoid vaccine, which should be performed at least 3 weeks after immunization Aiding in the evaluation of immunodeficiency This test should not be used to diagnose tetanus infection.

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...

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.

GATA3 - Overview: GATA Binding Protein 3 Immunostain, Technical Component Only

Characterizing carcinomas, including primary bladder and breast carcinomas, and some types of mesenchymal and neuroectodermal tumors

THCMX - Overview: 11-nor-Delta-9-Tetrahydrocannabinol-9-Carboxylic Acid (Carboxy-THC) Confirmation, Chain of Custody, Meconium

Detecting in utero drug exposure to marijuana (tetrahydrocannabinol) up to 5 months before birth Chain of custody is required whenever the results of testing could be used in a court of law. Its purpose is to protect the rights of the...

VIBC - Overview: Vibrio Culture, Feces

Determining whether Vibrio species may be the cause of diarrhea This test is generally not useful for patients that have been hospitalized for more than 3 days because the yield from these patients' specimens is very low, as is the...

KIMEL - Overview: Ki67 + Melan A Immunostain, Technical Component Only

Ki67 is a marker of proliferation in neoplasms Melan A aids in the identification of melanoma

KRTAE - Overview: Keratin (AE1/AE3) Immunostain, Technical Component Only

Identification of cells expressing a broad spectrum of cytokeratins (low and high molecular weight keratins)

ALKLC - Overview: Anaplastic Lymphoma Kinase for Lung Cancer, Immunohistochemistry

Identification of anaplastic lymphoma kinase overexpression Diagnosis of inflammatory myofibroblastic tumor, anaplastic large-cell lymphoma, and for targeted therapy of lung adenocarcinoma

RAMBO - Overview: Ammonium, Random, Urine

Diagnosis of the cause of acidosis using random urine specimens Diagnosis and treatment of kidney stones

ADULT - Overview: Adulterants Survey, Random, Urine

Assessment of possible adulteration of a urine specimen submitted for drug of abuse testing Providing the creatinine concentration for normalization purposes

DULOX - Overview: Duloxetine, Serum

Monitoring duloxetine serum concentration during therapy Evaluating potential duloxetine toxicity Evaluating patient compliance

CK - Overview: Creatine Kinase (CK), Serum

Diagnosing and monitoring myopathies or other trauma, toxin, or drug-induced muscle injury

FELBA - Overview: Felbamate (Felbatol), Serum

Determining whether a poor therapeutic response is attributable to noncompliance or lack of drug effectiveness Monitoring changes in serum concentrations resulting from interactions with coadministered drugs such as barbiturates and...

CEA - Overview: Carcinoembryonic Antigen (CEA), Serum

Monitoring colorectal cancer and selected other cancers such as medullary thyroid carcinoma May be useful in assessing the effectiveness of chemotherapy or radiation treatment This test is not useful for screening the general population...

PDSU - Overview: Drug Screen, Prescription/Over the Counter, Random, Urine

Qualitative detection and identification of prescription or over-the-counter drugs frequently found in drug overdose or used with a suicidal intent Providing, when possible, the identification of all drugs in the specimen This test is not...

CITR2 - Overview: Citrate Concentration, Random, Urine

Diagnosing risk factors for patients with calcium kidney stones Monitoring results of therapy in patients with calcium stones or renal tubular acidosis

HCO3 - Overview: Bicarbonate, Serum

Diagnosis and treatment of acid-base imbalance in respiratory and metabolic systems

IFXED - Overview: Immunofixation Heavy Chain Type Delta and Epsilon, Serum

Identification and isotyping of IgD or IgE monoclonal gammopathy Documentation of complete response to therapy with established monoclonal gammopathy consisting of an IgD or IgE heavy chain

LY27B - Overview: HLA-B27, Blood

Assisting in the diagnostic process of ankylosing spondylitis, juvenile rheumatoid arthritis, and reactive arthritis

LEVE - Overview: Levetiracetam, Serum

Monitoring serum concentration of levetiracetam, particularly in patients with kidney disease Assessing compliance with levetiracetam therapy Assessing potential toxicity of levetiracetam

LD - Overview: Lactate Dehydrogenase (LDH), Serum

Investigation of a variety of diseases involving the heart, liver, muscle, kidney, lung, and blood Monitoring changes in tumor burden after chemotherapy; lactate dehydrogenase elevations in patients with cancer are too erratic to be of use...

GD65C - Overview: Glutamic Acid Decarboxylase (GAD65) Antibody Assay, Spinal Fluid

Possible use in evaluating patients with autoimmune encephalitis, stiff-person syndrome, autoimmune ataxia, autoimmune epilepsy, and other acquired central nervous system disorders affecting gabaminergic neurotransmission

GLURA - Overview: Glucose, Random, Serum

Diagnosing and managing diabetes mellitus and other carbohydrate metabolism disorders including gestational diabetes, neonatal hypoglycemia, idiopathic hypoglycemia, and pancreatic islet cell carcinoma

FL - Overview: Fluoride, Plasma

Assessing accidental fluoride ingestion Monitoring patients receiving sodium fluoride for bone disease or patients receiving voriconazole therapy

GABA - Overview: Gabapentin, Serum

Monitoring serum gabapentin concentrations Assessing compliance Adjusting dosage in patients

OMHC - Overview: Oxcarbazepine Metabolite, Serum

Monitoring serum concentration during oxcarbazepine therapy Assessing compliance Assessing potential toxicity

TP - Overview: Protein, Total, Serum

Diagnosis and treatment of a variety of diseases involving the liver, kidney, or bone marrow, as well as other metabolic or nutritional disorders

VORI - Overview: Voriconazole, Serum

Monitoring trough levels of voriconazole is suggested for: -Individuals with reduced liver function -Individuals with cytochrome P450 (CYP) 2C19 alterations associated with poor metabolic function -Patients taking other medications that...

CTP10 - Overview: Catecholamine Fractionation, Standing, Plasma, Free

Diagnosis of pheochromocytoma and paraganglioma in specimens collected from individuals in a standing position, as an auxiliary test to fractionated plasma and urine metanephrine measurements Diagnosis and follow-up of patients with...

CTP0 - Overview: Catecholamine Fractionation, Supine, Plasma, Free

Diagnosis of pheochromocytoma and paraganglioma in specimens collected from individuals in a supine position, as an auxiliary test to fractionated plasma and urine metanephrine measurements Diagnosis and follow-up of patients with...

KCSF - Overview: Immunoglobulin Kappa Free Light Chain, Spinal Fluid

Diagnosing multiple sclerosis and other demyelinating conditions Evaluating patients who present with a clinically isolated syndrome in which the patient reports symptoms (headaches, optic neuritis, fatigue, and many others, depending on...

IFG23 - Overview: Intact Fibroblast Growth Factor 23, Serum

Diagnosing and monitoring tumor induced osteomalacia Diagnosing X-linked hypophosphatemia or autosomal dominant hypophosphatemic rickets Diagnosing familial tumoral calcinosis with hyperphosphatemia

HPFLU - Overview: Influenza Virus Type A and Type B and Respiratory Syncytial Virus (RSV) RNA, Molecular Detection, PCR, Varies

Simultaneous detection of influenza A virus, influenza B virus, and respiratory syncytial virus in upper or lower respiratory tract specimens from individuals with flu-like illnesses

RPCWT - Overview: Renal Pathology Consultation, Wet Tissue

Evaluating and managing patients with kidney disease Following the progression of known kidney disease or response to therapy Determining the cause of dysfunction in the transplanted kidney (allograft)

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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....

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.