- Magnesium
- Malarial Falciparum and Vivax Antigen (Parasite V & F)
- Malarial Parasite Identification
- Maternal Serum AFP
- Measles – PCR
- Measles (Rubeola) Antibody IgM
- Measles (Rubeola) IgG
- Mercury
- Metanephrines
- Methamphetamine
- Microalbuminuria
- Microfilaria Antigen
- Microfilaria Detection
- Montoux Test
- Mumps- PCR
- Mumps Virus Antibody IgG
- Mumps Virus Antibody IgM
- Mycobacterium Tuberculosis mRNA PCR
- Myoglobulin