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Indicators
An antimetabolite and antifolate agent with antineoplastic and immunosuppressant activities. Methotrexate binds to and inhibits the enzyme dihydrofolate reductase, resulting in inhibition of purine nucleotide and thymidylate synthesis and, subsequently, inhibition of DNA and RNA syntheses. Methotrexate also exhibits potent immunosuppressant activity although the mechanism(s) of actions is unclear.
Tests
A proprietary serology assay that can be used to measure IgG antibodies against the SARS-CoV-2 nucleocapsid protein (N).
Tests
A proprietary serology assay that can be used to measure IgM antibodies against the SARS-CoV-2 nucleocapsid protein (N).
Tests
The determination of the ratio of N-acetyl aspartate compared to choline present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the N-acetyl-B-D-glucosaminidase to creatinine in a biological sample. The measurement may be expressed as either a ratio or a percentage.
Tests
The determination of the amount of n-butanol in a sample.
Tests
The determination of the amount of N-demethylase present in a sample.
Tests
The determination of the amount of N-nitrosoanabasine in a sample.
Tests
The determination of the amount of N-nitrosopiperidine in a sample.
Tests
The determination of the amount of N-nitrosopyrrolidine in a sample.
Tests
Natriuretic peptides are proteins that your heart and blood vessels make. Natriuretic peptide tests measure the amount of these proteins in a sample of your blood. They are mainly used to help confirm or rule out heart failure in people who have symptoms.
Tests
The determination of the amount of NNAL-N-gluc in a sample.
