MMAU - Overview: Methylmalonic Acid, Quantitative, Urine

Evaluating children with signs and symptoms of methylmalonic acidemia using urine specimens Evaluating individuals with signs and symptoms associated with a variety of causes of vitamin B12 (cobalamin) deficiency

MMAS - Overview: Methylmalonic Acid, Quantitative, Serum

Evaluating children with signs and symptoms of methylmalonic acidemia using serum specimens Evaluating individuals with signs and symptoms associated with a variety of causes of vitamin B12 (cobalamin) deficiency

MUM1 - Overview: MUM-1/IRF4 Immunostain, Technical Component Only

Aids in the identification of hematolymphoid neoplasms and melanomas

MUSK - Overview: Muscle-Specific Kinase (MuSK) Autoantibody, Serum

Diagnosis of autoimmune muscle-specific kinase (MuSK) myasthenia gravis Second-order test to aid in the diagnosis of autoimmune myasthenia gravis when first-line serologic tests are negative Establishing a quantitative baseline value...

MUCN4 - Overview: Mucin 4, Immunostain, Technical Component Only

Aids in the differentiation of sarcomatoid carcinoma from sarcomatoid mesothelioma

NKX3 - Overview: NKX3.1 Immunostain, Technical Component Only

Identifying tumors of prostatic origin

MOLPS - Overview: Molybdenum, Serum

Monitoring of parenteral nutrition Monitoring metallic prosthetic implant wear As an indicator of molybdenum cofactor deficiency

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

NUT - Overview: NUT Immunostain, Technical Component Only

Aiding in the diagnosis of nuclear protein in testis midline carcinoma

OPATM - Overview: Opiate Confirmation, Meconium

Detecting maternal prenatal opiate/opioid use up to 5 months before birth